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PISA Syndrome-Orthopedic manifestation of a neurological disease?

Published on: 26th May, 2020

OCLC Number/Unique Identifier: 8603897033

Pleurothotonus, commonly known as Pisa Syndrome (PS), is a rare neurological disorder characterized by lateral bending of the trunk with a tendency to lean to one side. This is typically mobile and resolves in supine position. It often presents as an incapacitating symptom of underlying neurodegenerative conditions like Parkinson’s disease, alzheimer’s disease, multisystem atrophy, dementia with Lewy bodies, progressive supranuclear palsy and even subacute sclerosing panencephalitis. It is known to be associated with neuroleptics, dopaminergic agents, valproic acid and lithium. PS is also seen in neurosurgical disorders like subdural hematoma, normotensive hydrocephalus, or as a late complication of pallidotomy in patients with PD. It can present either as an acute emergency or can develop gradually over time.PS tend to happen in coronal plane and can be controlled and managed if diagnosed in early stage. However, a chronic form known as “camptocormia” occurs often in a combined fashion with anteroposterior flexion which can improve to some extent, remain stable or even get worse. Pathophysiologic mechanism is not completely understood. This review will discuss all the updated literatures published in PS in terms of prevalence, pathophysiology, clinical manifestation, and treatment modalities.
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Role of yoga in Parkinson’s disease-A comprehensive update of the literature

Published on: 26th May, 2020

OCLC Number/Unique Identifier: 8605987262

Parkinson’s disease (PD) is a neurodegenerative disorder characterized by progressive degenerative motor symptoms (e.g., tremors, impaired balance and gait) and nonmotor symptoms (e.g., fatigue, sleep disturbances, pain) that can negatively influence health and mental wellbeing by decreasing quality of life. It affects nearly 10 million people and more and more cases are diagnosed because of the advancement seen in movement disorder clinics and diagnostic tools worldwide. Individuals with PD also complain about anxiety arising out of these symptoms of postural instability, low back pain etc., which may lead to increased risk of falls and fall related injuries of brain, bone or other organ systems. Stress is one factor which has been shown to directly correlate to neurodegenerative pathology. Ways to reduce stress at a given point of time and across one’s life span is considered to be a prime necessity in today’s world. Various body-mind exercises like yoga, tai chi, qi gong, tango, ballet etc., has been in research for quite some time now, which has shown benefits in PD patients. In this article evidences related to yoga and its role in PD will be reviewed in a detailed fashion.
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Visual evoked potentials: Normative values from healthy Senegalese adults

Published on: 11th August, 2020

OCLC Number/Unique Identifier: 8652203971

Introduction: Visual evoked potentials (VEPs) are potential differences recorded on the scalp in response to visual stimulation. They are obtained with slowly repeated stimuli. The aim of this study was to determine the normative values of the visual evoked potentials in our setting. Methodology: We conducted a cross-sectional study from February 1 to April 30, 2019 at the Clinical Neurophysiology laboratory of the I.P. Ndiaye Clinic at CHNU Fann in Dakar (Senegal). Results: We found that men had high averages of N75, P100 and N145 wave latencies and low averages of P100 wave amplitude (p>0.05). However, neither age nor body mass index influenced the parameters of VEPs. Conclusion: Sex is important physiological variable in establishing laboratory normative values for VEPs. There is a marked difference between the sexes for the VEPs parameters.
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Central nervous system diseases associated with blood brain barrier breakdown - A Comprehensive update of existing literature

Published on: 25th August, 2020

OCLC Number/Unique Identifier: 8799409922

Blood vessels that supply and feed the central nervous system (CNS) possess unique and exclusive properties, named as blood–brain barrier (BBB). It is responsible for tight regulation of the movement of ions, molecules, and cells between the blood and the brain thereby maintaining controlled chemical composition of the neuronal milieu required for appropriate functioning. It also protects the neural tissue from toxic plasma components, blood cells and pathogens from entering the brain. In this review the importance of BBB and its disruption causing brain pathology and progression to different neurological diseases like Alzheimer’s disease (AD), Parkinson’s disease (PD), Amyotrophic lateral sclerosis (ALS), Huntington’s disease (HD) etc. will be discussed.
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Post-stroke dizziness of visual-vestibular cortices origin

Published on: 27th November, 2020

OCLC Number/Unique Identifier: 8799408842

Many patients with chronic cerebrovascular diseases complain “dizziness”, which is a distortion of static gravitational orientation, or an erroneous perception of motion of the sufferer or of the environment. In the vestibular cortical system, the parieto-insular vestibular cortex (PIVC) serves as the core region having the strong interconnections with other vestibular cortical areas and the vestibular brainstem nuclei. By forming the reciprocal inhibitory interactions with the visual cortex (VISC), it also plays a pivotal role in a multisensory mechanism for self-motion perception. In a line of our studies on post-stroke patients, we found that there was a significant decrease in the cerebral blood flow in both the VISC and PIVC in the patients who suffered from dizziness. In this article, we provide a new concept that due to dysfunction of the visual-vestibular interaction loop, low cerebral blood perfusion in the PIVC and VISC might elicit post-stroke dizziness.
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Evaluation of the effectiveness of transcranial electrostimulation in treatment of neuropsychiatric disorders

Published on: 17th August, 2021

OCLC Number/Unique Identifier: 9272357891

Objectives: Evaluation of the effectiveness the method of transcranial electrostimulation in treatment of neuropsychiatric disorders with the use of a patches by the company “Aganyan”. Materials and methods: The study was a double-blind, randomized, placebo-controlled study, participated 106 patients with neuropsychiatric disorders. All participants in were divided into tables according to gender, age and diagnosis. Each subject was given the “Aganyan” patches and a special brochure, in which the method of application was indicated in detail. The wearable patch includes a flexible substrate, a binder an adhesive layer, with an electrode foil attached to it. Patients applied one patch behind each ear. The patches were applied for eight hours every third day for three months. To assess the effectiveness of therapy in patients the following tests were used: The Montreal Cognitive Assessment Scale; MMSE Scale: Concise Mental Status Scale; diaries of observation of the patient’s condition to identify side effects; special brochures in which the subjects independently indicated the effects of the “Aganyan” patches. Tests were performed before and after the use of the “Aganyan” patches. Results: When using the patches of the “Aganyan” company, none of the participants in the study had any side effects; According to the results of the Montreal test according to the criterion of memory and the MMSE test, the effectiveness of the patch was noted in patients with all clinical diagnoses. The greatest positive dynamics was revealed according to the results of the Montreal test according to the criterion of memory in patients with migraine (30%), insomnia (31%), vascular dementia (32%), and according to the results of the MMSE test in patients with diagnoses: cerebrovascular disease: consequences of a cerebral infarction brain (31%), vascular dementia (56%). Conclusion: The patches of “Aganyan” company have proven its effectiveness through electrical stimulation with low-intensity current in patients in different age groups with different clinical diagnoses.
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Acute urinary retention and hyponatremia from central hypothyroidism

Published on: 8th January, 2021

OCLC Number/Unique Identifier: 8899349889

A mass arising from the pituitary gland commonly damages cells of the anterior pituitary gland and affects the secretion of gonadotropins and growth hormone. However, central hypothyroidism and secondary adrenal insufficiency from such damage is a rare phenomenon. Acute urinary retention as the main symptom of central hypothyroidism is also an unusual initial presentation. We report a male patient who comes with frequent urinary retention and hyponatremia at our hospital.
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Factors associated with mortality after decompressive craniectomy in large basal ganglia bleeds

Published on: 11th May, 2021

OCLC Number/Unique Identifier: 9272362372

Aim: To assess the efficacy of decompressive craniectomy in patients with large basal ganglia (BG) bleed. To establish predictive criteria of mortality after surgery in patients with BG bleed. Materials: This prospective study includes all patients of large spontaneous BG bleed operated by decompressive craniectomy without hematoma evacuation from October 2012 to September 2015. Data was collected on patient age, gender, distribution of bleed, affected hemisphere dominancy, preexisting medical conditions, admission Glasgow Coma Score (GCS), midline shift on CT or MRI Brain, hematoma volume and anisocoria, duration (hours) between the onset of stroke and operation, post-operative complications, and the duration of hospital stay. This data was correlated with one month mortality of the patients. Results: Total number of patients were 27. Mean age was 51 years and mean GCS was 7.55(range 5-11). The mean volume of the bleed was 68.51 ml. Mortality was noted in 17 out of 27 patients (63%) in 30 days. Thirteen of the 16 patients with intraventricular extension of BG bleed had mortality. The factors that showed statistically significant correlation with one month mortality were age, GCS at admission, volume of the bleed and the intraventricular extension. Conclusion: Large BG bleed was associated with high mortality and morbidity. Age of 50 years or more and GCS ≤ 8 at presentation were poor prognostic factors for decompressive craniectomy in patients with BG bleed. Patients with large BG bleed of volume > 60 ml and intraventricular extension had poor prognosis.
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Endovascular management of tandem occlusions in stroke: Treatment strategies in a real-world scenario

Published on: 29th June, 2021

OCLC Number/Unique Identifier: 9272368208

The association between intracranial large vessel occlusion (LVO) and concurrent steno-occlusive lesion of an ipsilateral extracranial internal carotid artery (ICA) is considered a tandem occlusion (TO) [1]. In approximately half of TO, the first clinical manifestation are acute occlusions of the extracranial ICA associated with occlusion of the middle cerebral artery (MCA), with additional occlusion of the intracranial ICA in up to 25% of these cases.[2] This particular lesion subset is technically challenging for endovascular treatment (EVT) and is also characterized by lower success rates of intravenous thrombolysis [3], worse prognosis compared to intracranial occlusions alone, and higher rates of symptomatic intracranial hemorrhage [4]. The optimal approach regarding EVT of TO remains controversial, and reports in this regard are scarce. There are two proposed strategies according to the selection of the first lesion to be treated. The proximal approach comprises stenting of the proximal cervical ICA followed by mechanical thrombectomy (MT) of the intracranial vessel, whereas the distal approach involves MT followed by stenting of the cervical ICA [3–14]. Besides, there other clinically relevant unresolved aspects regarding the treatment of these patients, such as concomitant use of intravenous thrombolysis, the need for stenting compared to angioplasty alone, as well as the most adequate antiplatelet strategy after treatment. Accordingly, we aimed to report the procedural and clinical outcomes of a real-world experience in a comprehensive stroke center regarding EVT of anterior circulation acute ischemic stroke (AIS) associated with a TO.
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Facial-onset sensory-motor neuronopathy, a rare variant of Huntington’s disease or chance association?

Published on: 15th July, 2021

OCLC Number/Unique Identifier: 9136190397

Objectives: To describe a patient with facial-onset sensory-motor neuronopathy (FOSMN) that later developed Huntington’s disease (HD). Case report: A 62-year-old woman complained of progressive dysphagia 8 years before referral. At initial evaluation, there was excessive salivation, dysphagia, and sensory-motor trigeminal impairment. Denervation was noted on the upper limbs and the tongue. Blink reflexes were abolished. Genetic study of amyotrophic lateral sclerosis (ALS)-related genes was normal. She was diagnosed with FOSMN syndrome. Her clinical state progressively worsened with corneal anesthesia, severe denutrition, right arm and axial weakness. Seven years after referral, she was unable walk and developed generalized chorea. Abnormal huntingtin gene repeat expansion confirmed the diagnosis of HD. She died 16 years after onset of dysphagia. Conclusion: Cases with both HD and ALS have already been reported but not FOSMN and HD, to our knowledge. Some FOSMN cases have been linked to ALS-related gene mutations and HD phenocopies have been associated with C9ORF72 repeat expansions. Recently, huntingtin repeat expansions were described in the ALS population. Although a chance association cannot be excluded, data from the literature are in favor of a pathogenic relationship between FOSMN and HD in this particular case. We suggest that huntingtin gene be more systematically studied in patients with FOSMN.
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Sleep quality and associated factors among patients with chronic illness at South Wollo Zone Public Hospitals, Northeast Ethiopia

Published on: 20th July, 2021

OCLC Number/Unique Identifier: 9186943722

Background: Pathological and nighttime sleep deprivations have substantial adverse effects on regulation of weight, sugar and blood pressure because of endothelial dysfunction, sympathetic nervous system stimulation, regulation and activation of systemic inflammation. Thus, this study was aimed to assess quality of sleep among patients with chronic illness and its associated factors at South Wollo Zone Public Hospitals, Northeast Ethiopia. Methods and Materials: The study was conducted at South Wollo Zone Public Hospitals, Northeast Ethiopia from February 15 2019 till April 15 2019. Institutional based cross sectional study design was employed. All patients with chronic illness who are on follow up in South Wollo Zone Public Hospitals were sources of population. Sample size was calculated by using EPI info version 7 and the total sample size was 344. The study employed stratified random sampling technique and study participants were selected by systematic sampling. After taking ethical approval from College of Medicine and Health Sciences Ethical Approval Committee, permission from selected Hospitals and informed verbal consent from patients, the data were collected by a tool which has 3 parts: Sociodemographic data, Pittsburgh Sleep Quality Index and factors affecting sleep quality. Data were entered in to Epi data version 4.1 and exported to Statistical Package for Service Product 25 for analysis. Different data presentation tools and binary logistic regression were enrolled by considering 95% confidence level and p value of 0.05. Result: Among the total study participants, near to one third (31.7%) of them got sleep after 30 minutes. More than one fourth of them slept for less than 7 hours. Less than half of the study participants had habitual sleep efficiency of more than 85% however 296(86%) of them did not face day time dysfunction Conclusion and recommendations: more than one third of patients with chronic illness had poor sleep quality. One third of study participants had sleep duration of less than the recommendations(less than 7 hours). Age, educational status, residence, and perception of prognosis of disease were factors that have associations with poor sleep quality among patients with chronic illness. Health care providers who are doing in chronic illness follow up clinic should be initiated to assess and screen those patients with poor sleep quality.
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Psychosocial factors among end-stage kidney disease patients receiving hemodialysis treatment in Kumasi, Ghana

Published on: 7th September, 2021

OCLC Number/Unique Identifier: 9252226609

Background: End-Stage Kidney Disease and its maintenance hemodialysis treatment force patients to make several lifestyle changes to cope with this debilitating illness. These changes often trigger the onset of notable psychological distress and depressive symptoms. Furthermore, these negative psychological experiences can undermine the effectiveness of the treatment and consequently worsening the health and quality of life of patients. Objective: The study assessed the psychological well-being among hemodialysis patients in Kumasi Metropolis. Further, it explored the relationship between these psychosocial factors and demographic characteristics.Materials and Methods: 30 hemodialysis patients were recruited from two dialysis units in Kumasi, Ghana. Participants were aged 18 and above and had been on hemodialysis treatment for more than three months. The Hospital Anxiety and Depression scale (HADS) was used to assess depression and anxiety whiles the Multidimensional Scale of Perceived Social Support was used to assess perceived social support of participants. Results: The majority of respondents were males (60%), relative to females. The study revealed that 80% were severely depressed, 20% met the criteria for severe anxiety.  Some participants reported moderate social support 53.3%; perceived social support being inversely correlated with both depression (r = 0.41; n = 30; p < 0.05) and anxiety (r = -0.59; n = 30; p < 0.05). Income levels were inversely correlated with depression (r = -0.41, n = 30; p < 0.05). Conclusion: Findings of the study suggest that the psychological wellbeing of hemodialysis patients is compromised. Social support appears to alleviate depression and anxiety. Implications for patient treatment are discussed.
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Chase out or unfortunate coping strategy? Analysis of urban settlement of the homeless addicts at public parks

Published on: 8th September, 2021

OCLC Number/Unique Identifier: 9231824192

Extant studies have labelled persons-with-addiction and the homeless as ‘invaders’ of public parks, aggressive/violent with psychiatric and medical disorders, a burden to the society, and transmitters of most deadly airborne or chronic diseases. Literature subtly discuses that such people must be chased out of the public. Yet, such studies have not concurrently analyzed from the viewpoint of urban parks users, the persons-with-addiction and the homeless people what needs to be done to improve the situation. Therefore, the study aims to explore whether problematic communities and subcultural factors make the disadvantaged resort to negative copping strategies when their legal means are blocked: how the other park users respond to the homeless drug addicts’ hardship: and the possible suggestions from all the park users. This is done with reference to social disorganization and Sub-culture theory, and through ethnographic research approach (8 months field observation) and in-depth-interviews with 27 participants. Our study found that persons-with-addiction and the homeless are not always aggressive/violent/harmful as they have been labelled. But only disadvantaged individuals who desire to emulate the ideals and ambitions of the middle class but lack resources to achieve such success. Being overwhelmed with such frustrations from their dilemmas, they consider themselves ‘double-failures’ and retreat into drug addiction and find abode in the public spaces. We therefore conclude that persons with addiction and the homeless people are not always violent and criminal persons who are to be chased out of public parks. But only disadvantaged individuals who need help for choosing a negative coping strategy.
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Asthma and pregnancy prevalence in a developing country and their mortality outcomes

Published on: 6th September, 2021

OCLC Number/Unique Identifier: 9272357754

Background: Latin America has always had high maternal and infant mortality rates. However, the prevalence of asthma in pregnant patients and their outcomes are unknown. We aimed at answering those questions in a developing country’s maternity hospital. Methods: Since January 2011, a cohort of 591 pregnant asthma patients was prospectively recruited for 60 consecutive months. Patients were followed up by a multidisciplinary team until delivery. They were divided into two groups: one of 186 smokers or morbidly obese patients and another of 405 nonobese nonsmokers. Outcomes of mothers and their babies were documented.Results: Out of 57,031 deliveries, the overall estimated prevalence of 591 asthmatic pregnant patients was 1.03%. When adjusted for age standardized prevalence, it turned to 9.2%.With 28 maternal deaths (49 per 100,000 live births). None of these women had asthma. There were also 413 deaths among newborns (7.24/1000 live births). One occurred in the smoker/obese group (5.37/1000 live births) and two in the nonsmoker nonobese group (4.84/1000 live births). The prevalence of asthma during pregnancy seemed lower than in some affluent societies. Overall maternal mortality rates were similar to national figures; however, data on mothers’ mortality with asthma were unexpectedly absent.Conclusion: A multidisciplinary approach and the use of a low-cost inhaled steroid seemed to be the reasons for this. However, infant mortality rate remained high, which could be related to the risk of asthma itself. We believe there’s a worldwide need for agreements on a standardized approach for asthma’s epidemiological surveys, in order to make them comparable
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Depression and anxiety in patients with suspected renal artery stenosis

Published on: 6th September, 2021

OCLC Number/Unique Identifier: 9244771644

Objective: To investigate the occurrence of depressive and anxiety disorders in patients remitted for endovascular treatment of renal artery stenosis (RAS), and whether symptoms of depression and anxiety can be reduced after the treatment of RAS with percutaneous transluminal renal angioplasty (PTRA).Methods Patients: Selected for renal angiography with pressure measurement in the renal arteries due to suspected RAS were invited to participate in the study. 37 patients agreed to answer a questionnaire. Eighteen patients also agreed to a clinical psychiatric examination including the International Neuropsychiatric Interview (M.I.N.I. 6.0) to be diagnosed according to the DSM-IV. Results: Twenty-one of the 37 patients completing the questionnaire were found to have a pressure gradient of ≥ 10 mmHg at angiography, indicating significant stenosis. Ten of the 18 examined patients met the criteria for current DSM-IV anxiety diagnosis and two patients had a current depression. Three of the 18 examined patients had previously made a suicide attempt. Conclusion: The results of this study suggest that patients with suspected RAS have a high psychiatric comorbidity, as 56% of the patients undergoing psychiatric examination met the DSM-IV criteria for a current anxiety disorder.
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Differential roles of trithorax protein MLL-1 in regulating neuronal Ion channels

Published on: 8th September, 2021

OCLC Number/Unique Identifier: 9244745887

Repressive regulation of potassium channel genes by Polycomb group (PcG) proteins contributes to PcG protein-mediated neuroprotection against neuronal ischemic injury, as seen in an ischemic stroke. Here we asked the question whether Trithorax group (TrxG) proteins, the antagonistic partners of PcG proteins (i.e, epigenetic activators targeting the same genes) may also regulate potassium channels. Results of patch-clamp studies on cultured neuronal cells showed that inhibition of TrxG protein MLL-1 led to an increase in potassium channel activity, an unexpected effect for a presumed gene activator. In contrast, decreased sodium currents were observed with MLL-1 inhibition. Increased or decreased levels of potassium channel protein Kv2.1 or sodium channel protein Nav1.2, respectively, were seen with MLL-1 inhibition, as determined by immunocytochemistry. These results, for the first time, demonstrate an involvement of TrxG protein MLL-1 in regulating neuronal ion channels, potentially repressing potassium channel genes.
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An educational strategy for the implementation of a delirium assessment tool

Published on: 10th August, 2021

OCLC Number/Unique Identifier: 9198828639

Background: Delirium is an acute syndrome of organ dysfunction with long-term consequences which commonly occurs in the Intensive Care Unit (ICU). The incidence of delirium ranges from 30% - 50% in low severity ICU patients and up to 80% in mechanically ventilated patients. This condition is frequently under-recognized and daily routine screening is a key strategy to early intervention. The Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) and the Intensive Care Delirium Screening Checklist (ICDSC) are the most recommended assessment tools for detecting delirium in the critical ill patient. Objective: The main objective of this study is to educate ICU staff about delirium. In addition, nurses were trained to use the CAM-ICU as a standard screening tool. The intervention was evaluated through a survey aimed at ICU staff. Methods: An educational intervention was started in 2014 in our ICU. An educational package for ICU staff consisted of a didactic brochure and explanatory videos. One-on-one teaching, case based scenarios and didactic teaching were strategies used in the implementation process. The entire intervention was evaluated by means of a survey directed to the professionals. Results: The structure of the didactic brochure was simple in order to have an easy understanding of the CAM-ICU tool. We also created 10-minute videos. According to the results of the satisfaction survey (N=62), disorganized thinking was the most difficult feature of CAM-ICU to interpret. When in doubt, consultation between co-workers was the primary resource selected by unit staff. Conclusion: This initiative achieved the objective of training health care professionals in the application of the CAM-ICU tool with a good level of satisfaction from them. Therefore, ICU staff consider delirium management in the broader picture of critically ill patient care as a major activity of daily practice.
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Ranking of cadmium low amount measurement systems according to economic, environmental, and functional indicators using ELECTRE analytical method

Published on: 8th September, 2021

OCLC Number/Unique Identifier: 9244774024

Cadmium is one of the transition metals, known by the scientific name Cd. One of its main characteristics is the high toxicity, even in very little amounts. Cadmium is often released through industrial effluents, pesticides, chemical fertilizers, and the burning of fossil fuels. Since the presence of cadmium ions in the living organisms’ body, especially humans, can cause serious damage to the liver and pancreas, and also because its role in causing cancer has been proven, measuring very low amounts of this metal is of high importance. In the first step, this study has reviewed and analyzed common laboratory methods for measuring small amounts of cadmium. Then, according to economic, environmental, feasibility, speed, and accuracy factors, all available methods were evaluated using the ELECTRE technique. The results showed that the extraction methods using Dowex Optipore V-493 resin and extraction system in Triton X-114 surfactant, placed in the first and second positions.
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Behavior evaluation of freundlich and langmuir isotherms in cadmium preconcentration using solid phase extraction method for linear and nonlinear numerical computational patterns

Published on: 8th September, 2021

OCLC Number/Unique Identifier: 9244773069

Cadmium is naturally present in the mineral cadmium sulfide which is a rare form of this element and the highest amount of cadmium is obtained from the extraction process of other minerals such as lead, copper and zinc. The release of this metal into the environment leads to widespread epidemiological effects. Therefore, measuring small amounts of this metal is also of particular importance. Small amount measuring methods of this metal are such as,preconcentration using solid phase extraction system using adsorbents. The main part of the preconcentration process is achieved by adsorption processes. In this study, the behavior of Freundlich and Langmuir adsorption isotherms for the capacity of TMON and IMNM adsorbents in cadmium adsorption has been evaluated by Power and Rational statistical distributions. At the end of the study, the constant coefficients of the Freundlich and Langmuir models were compared in both linear and non-linear modes. The results showed; the linearization method for the Kf coefficient of the Freundlich isotherm can cause errors equal to 41.6% in TMON adsorbent and 39.3% in IMNM adsorbent. Also, in parameter b, errors of 66.66% are obtained in TMON adsorbent and 32.45% in IMNM adsorbent.
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Flow cytometry potential applications in characterizing solid tumors main phenotype, heterogeneity and circulating cells

Published on: 24th August, 2021

OCLC Number/Unique Identifier: 9213084224

Flow cytometry (FCM) is a unique technique that allows rapid quantitative measurement of multiple parameters on a large number of cells at the individual level. FCM is based on immunolabelling with fluorochrome-conjugated antibodies, leading to high sensitivity and precision while time effective sample preparation. FCM can be performed on tissue following enzymatic or mechanical dissociation. The expression of epithelial antigens and cytokeratin isoforms help in distinguishing tumor cells from adjacent epithelial cells and from tumor infiltrating leukocytes. Tumor phenotypes can be characterized on expression intensity, aberrancies and presence of tumor-associated antigens as well as their cell proliferation rate and eventual heteroploidy. FCM can measure quantitative expression of hormone or growth factor receptors, immunoregulatory proteins to guide adjuvant therapy. Expression of adhesion molecules tells on tumor’s capacity for tissue invasion and metastasis seeding. Tumor heterogeneity can be explored quantitatively and rare, potentially emerging, clones with poor prognosis can be detected. FCM is easily applicable on fine needle aspiration and in any tumor related biological fluids. FCM can also be used to detect circulating tumor cells (CTC) to assess metastatic potential at diagnosis or during treatment. Detecting CTC could allow early detection of tumors before they are clinically expressed although some difficulties still need to be solved. It thus appears that FCM should be in the pathologist tool box to improve cancer diagnosis, classification and prognosis evaluation as well as in orientating personalized adjuvant therapy and immunotherapy. More developments are still required to better known tumor phenotypes and their potential invasiveness
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