Viral meningitis in pregnancy: A case report
Published on: 13th October, 2020
OCLC Number/Unique Identifier: 8691250730
Ms X is a 34 year old para 1 woman who presented at 26+5 weeks’ gestation with fever, neurological symptoms and history of a viral illness. She was treated empirically for bacterial meningitis and transferred to a tertiary maternity hospital. Cerebrospinal fluid (CSF) polymerase chain reaction (PCR) was positive for enteroviral ribonucleic acid (RNA), confirming viral meningitis. Ms X improved clinically and was discharged after six days. A high index of suspicion is required for diagnosis of meningitis in pregnancy. Thorough history, examination and workup is vital for timely treatment. Prognosis in viral meningitis is excellent with no clear adverse fetal or neonatal outcomes.
Detection of IDH mutations in cerebrospinal fluid: A discussion of liquid biopsy in neuropathology
Published on: 17th September, 2020
OCLC Number/Unique Identifier: 8873201615
Isocitrate dehydrogenase (IDH) mutations are a common event in secondary glioblastoma multiforme and lower-grade adult infiltrative astrocytomas and independently confer a better prognosis [1,2]. These are highly conserved mutations during glioma progression and thus also a useful diagnostic marker amenable to modern molecular sequencing methods. These mutations can even be detected in sites distant from the primary tumour. We use an illustrative case of a patient with radiologically suspected recurrent astrocytoma and negative histology, but positive IDH-mutated tumour DNA detected within CSF. Our results demonstrated the usefulness of liquid biopsy for recurrent glioma within the context of equivocal or negative histopathological results, whilst also showing the ability to detect a de-novo IDH-2 mutation not present in the previous resection. Building on this ‘proof-of-concept’ result, we also take the opportunity to briefly review the current literature describing the various liquid biopsy substrates available to diagnose infiltrative gliomas, namely the study of circulating tumour DNA, circulating tumour cells, and extracellular vesicles. We outline the current challenges and prospects of liquid biopsies in these tumours and suggest that more studies are required to overcome these challenges and harness the potential benefits of liquid biopsies in guiding our management of gliomas
Chronic subdural haematoma associated with arachnoid cyst of the middle fossa in a soccer player: Case report and review of the literature
Published on: 16th May, 2020
OCLC Number/Unique Identifier: 8628644362
Introduction: Arachnoid cyst (AC) is a congenital, benign, extra-axial lesion often found incidentally on intracranial imaging and makes up almost 1% of all intracranial masses. It arises from the splitting of arachnoid membranes with components similar to the cerebrospinal fluid. It’s reported that AC can be complicated by chronic subdural haematoma in athletes with repeated head injuries.
Case report: we describe a case of a soccer player with an AC that underwent surgery for a chronic subdural haematoma with full recovery.
Material and method: From a PubMed research, we found 14 relevant studies reporting a total of 15 patients who met the inclusion criteria: playing soccer, subdural hematoma and arachnoid cyst.
Results: Patients underwent different surgical treatment. In the case of hygroma with no midline shift, a conservative treatment was performed. In all cases the reported follow up was a full recovery.
Discussion: Soccer is not usually considered a contact sport related to a high risk of head trauma or shaking head. From our review we can postulate that a soccer player with AC has an augmented risk to have a subdural haemorrhage, more rarely intracerebral haemorrhage.
Conclusion: ACs are common meningeal abnormalities. They may bleed after minor head trauma, although it is rare. Asymptomatic patients with known AC should be monitored by a neurosurgeon and decision to engage this patient in soccer sport participation is still controversial.
Specific meningoencephalitis in patients with transplanted kidney
Published on: 17th June, 2020
OCLC Number/Unique Identifier: 8628628844
We described a case of specific (tuberculous) encephalitis in a patient after kidney transplantation. Immunosuppressive therapy, continuously required in post-tranplant period, may cause various complications, such as infections. Specific meningoencephalitis is an infection that is rarely diagnosed and more common in immunocompromised patients.
Case report: A 30-year-old man had kidney transplantation (kidney donor was his father). He previously was two years on chronic hemodialysis treatment because of end-stagerenal disease based on diabetic nephropathy. He has diabetes type 1. The early post-transplant period duly passed with satisfactory clinical and laboratory parameters of renal function. Two months after transplantation, he presented with febrile condition, signs of septicemia and dehydration with significant neurological deficit and expressed meningeal signs. In cerebrospinal fluid we found lymphocytosis, elevated proteins and positive micobacterium tuberculosis antibodies (Hexagon method) and we suspected to specific etiology of meningitis. Performed computed tomography (CT) scan of the brain with contrast confirmed the expected finding.
Due to the poor prognosis of infections of the central nervous system (CNS) in immunocompromised patients, only prompt diagnosis can improve survival in this group of patients. The therapeutic protocol after kidney transplantation include the prophylactic use of antituberculous drug (Isoniazid 300 mg) during the 9 months.
Role of neuron specific enolase as a biomarker in Parkinson’s disease
Published on: 6th July, 2021
OCLC Number/Unique Identifier: 9137583301
Parkinson’s disease (PD) is thought to be the most common neurodegenerative disease with movement disorder. The key motor symptoms are rigidity, tremor, akinesis/hypokinesia/bradykinesia, and postural instability. However, in our day-to-day clinical practice we tend to see several other symptoms which may be motor or non-motor. Non-motor symptoms (NMS) are quite common and debilitating. The pathological hallmarks of PD are loss of dopaminergic neurons in the substantia nigra pars compacta (SNPc) and accumulation of unfolded or misfolded alpha-synuclein. Diagnosis of PD is difficult in the pre-motor stage. Late diagnosis renders a substantial loss of dopaminergic neurons in SNPc and spread of disease in other parts of the brain. This may manifest as either full blown symptoms requiring multiple medications or may even lead to life threatening condition due to lack of early diagnostic tools and techniques. Biomarkers are required to diagnose PD at a very early stage when prevention is possible. Hence, we see a lot of interest among researchers involved in finding a biomarker specific to the disease. Biomarkers may be clinical, image based, genetic, and biochemical. Cerebrospinal fluid (CSF) and serum markers which may correlate with disease pathophysiology are of great significance. One such molecule which recently gained a lot of attention is neuron-specific enolase (NSE). The main aim of this paper is to highlight the role of NSE in predicting neurodegeneration and neuroinflammation ultimately reflecting damage of brain cells in PD.
Imaging aspect of neuromyelitis optica: a case report and review of the literature
Published on: 7th December, 2021
OCLC Number/Unique Identifier: 9359560505
The case report presents a neuromyelitis optica in a 19 years old male. Brain and spinal cord MRI showed bilateral optic neuropathy, multiphasic demyelinating process involving the cervical and thoracic spinal cord. Cerebrospinal fluid showed negative NMO Ig G. We will describe the radiological aspect of neuromyelitis optica with a review of the literature.
Atypic subacute sclerosing panensefalitis in a six-year-old male
Published on: 23rd November, 2022
Subacute sclerosing panencephalitis is a rare, slow, and insidious neurodegenerative disease caused by measles. This disease mostly has a classic course. However, sometimes it can be presented with atypical manifestations. In this paper, we aim to present a six years old male patient that was hospitalized due to seizures and ataxia. Cerebral magnetic resonance imaging was normal on the first day of admission, but within a few days, the patient started to be apathetic. On the seventh day, magnetic resonance imaging showed hyperintense lesions in the thalamic, brainstem, and periventricular areas. Periodic epileptiform discharges were detected in the repeated electroencephalogram. Investigations from the cerebrospinal fluid showed markedly elevated measles virus IgG at 230U/ml consistent with the diagnosis of SSPE which should always be ruled out when a patient comes in with uncontrollable seizures, ataxia and apathy.
Expression of Collagen VI, Anticollagenase, Laminin, MM9, Claudins 1 and 5, N and E Cadherins in Choroid Plexus Tumors
Published on: 25th November, 2023
Background: CPTs are rare intraventricular papillary neoplasms derived from the choroid plexus epithelium. Anti-collagenase and extracellular matrix which have not been expressed in brain tumors. Objective: The purpose of this study was to investigate the expression levels of collagen type VI, anti-collagenase, laminin, MM9, claudins 1 and 5, N and E cadherins, and collagen VII, tejido, and collagen degradation enzyme complexes in choroid plexus tumors.Materials and methods: We studied the expression of adhesion molecules, extracellular matrix, and anticollagenase with an immunohistochemistry approach and electron microscopy analysis in 42 choroid plexus tumors. Results: 28(67%) were choroid plexus papillomas, 8 (19%) were atypical choroid plexus papillomas and 6 (14%) were choroid plexus carcinomas. The Ki67-li and MVD increased from CPC to ACPP, being the highest in malignant tumors as well as a strong immunoexpression of anti-collagenase and were inverse correlation with claudin 5, E, and N cadherin and collagen IV immunoexpressions which added further significant information to the prognosis and varied according to the histologic classification. By ultrastructure, the loss of basal membrane and cilia, disorganization, and proliferation of ECM were observed in CPC. Cerebral homeostasis largely results from the ability of both the Blood–Brain Barrier (BBB) at the brain microvascular endothelium and the Blood–Cerebrospinal Fluid Barrier (BCSFB) at the epithelium of the Choroid Plexuses (CPs), to control the composition of the CSF and cerebral extracellular fluid. Under expression of the tight junction proteins occludin, claudin-1 and claudin-5 are key molecular abnormalities responsible for the increased permeability of tumor endothelial tight junctions. Conclusion: The loss of basement membrane and ECM overexpression could be considered as a poor prognosis predictor in CPT. Anti-collagenase and MMP9 overexpression could be related to basal membrane and BBB plasticity in CPTs.
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