nasal cytology

Purpose: Benign paroxysmal positional vertigo (BPPV) is the most frequent peripheral vertigo syndrome in otoneurological clinical practice and is characterized by short and paroxysmal objective vertigo crises caused by changes in the position of the head on specific planes of space. Secondary microvasculitis is characterized by inflammatory destruction of the small vessels. Starting from this point, this work is based on the research of correlation between microvasculitis (especially secondary), recurrent BPPV and nasal cytology, an aspect, among other things, poorly documented. Materials and methods: To evaluate the relationships between recurrent BPPV and secondary microvasculitis, nine patients with this disorder, 5 males and 4 females aged between 25 and 40 years were observed (average age 30.6). Non allergic pains in the small joints and in the anamnesis nothing relevant in the gentiles and collaterals: Evaluated with vestibular audiometric examination, nasal cytology and vascular examination with corneal HRT results. Nasal cytology, in all cases, has documented the presence of rare mast cells. The hemodynamics of the microcirculation with a confocal microscope has revealed blood flow alteration in all subjects. Discussion: Analyzing the results, both the prevalence of the right side and a close relationship between vasculitis and BPPV could be seen. Conclusion: The study of the nasal mucosa and the research of inflammatory cells could be fundamental for the study of BPPV in which as we have seen the important biochemical role for the onset of these diseases.

SARS-CoV-2 is a new pandemic infection that affects at the beginning the upper respiratory system, and, successively, all the organisms, due to cytokine storm, with serious consequences that can reach death. The aim of this work was the observation of the nasal mucosa of enrolled 60 patients, resulting negative for two weeks to the molecular swab for SARS-CoV-2, versus the control group. Rhino-fibroscopy and nasal cytology of nasal mucosa were performed for both the investigated groups. The observation of the samples showed the occurrence of plasmablastic lymphocytes and Downey II lymphocytes type. The former type of lymphocytes was prevalent against the second one, probably because of an immunological “scar”. The rhino-fibroscopy showed a “pseudo ischemia of nasal submucosa” at pre and pericranial levels, not occurred in the control group.The occurrence of atypical lymphocytes in the nasal smear was analog to that observed in the blood peripheral smear, probably caused by mechanisms of local immune reaction and dysregulation like those observed in other virus infections. Our findings suggest that the nasal mucosa study through the nasal cytology, can represent an important predictive tool of the SARS-CoV-2 infection.