[Approximation analysis in the study of the epidemiology of the epistaxis].

Unlabelled: Epistaxis or nosebleeds (NB) are the most common emergency pathology that otorhinolaryngologists have to deal with. Purpose of the work: to study the prevalence of patients with NB in the otorhinolaryngological departments of hospitals in Moscow from 2003 to 2019. The reports of the heads of the ENT departments of the city clinical hospitals in Moscow were studied.

[The clinical observation of NK/T-cell lymphoma of the nasal type].

The objective of the present work was to present the results of the clinical analysis of the patient presenting with natural killer (NK)/T-cell lymphoma of the nasal type. We undertook the analysis of the medical documentation concerning the case of interest. It was shown that the development of progressive perforation of the nasal septum and the pronounced destructive changes in the intranasal and adjacent structures following the endonasal surgical interventions made necessary differential diagnostics between the condition under consideration and certain latent disorders (such as Wegener's granulomatosis, leprosy, syphilis, leishmaniasis, dirofilariasis tuberculosis, etc.

[Sintopy of the distal end of the nasolacrimal duct detected by means of the vector analysis of the CT-identified anatomical features of the nasal cavity].

The objective of the present work was to study syntopy of the distal end of the nasolacrimal duct based on the results of the vector analysis of the CT-identified anatomical features of the nasal cavity and the paranasal sinuses in 102 patients (204 nasolacrimal channels). The main criterion for inclusion in the study was the absence of traumatic injuries and inflammatory changes in the nasal cavity and the paranasal sinuses. X-ray studies of the distal end of the nasolacrimal duct (NLD), turbinate crest (crista conchalis), the edge of the nasal aperture, and the floor of the nasal cavity were carried out.