Nasopharyngeal arteriovenous malformation. Rare clinical observation

Arteriovenous malformation (AVM) of the head and neck is a rare disease developing during embryo- and vasculogenesis due to RASA1 mutation which is inherited in accordance with autosomal dominant pattern and is associated with CMC1 locus on the long arm of the 5th chromosome 5q13.3. Statistically, AVMs are rarer than other congenital vascular abnormalities such as lymphatic or venous malformations. While AVMs are non-malignant neoplasms, among all vascular abnormalities they are the most aggressive, destructive and complex in their structure. In international literature, a small number of articles describing cases of this pathology exists (for example, I.T. Jackson et al. analyzed 16 cases of this pathology, M.T. Chen et al. reported on 14 cases, M.P. Kohaut et al. analyzed 81 cases of extracranial AVMs).In Russin literature, the number of articles describing clinical cases of AVM is in the single digits, and this topic remains quite relevant. The article presents a rare clinical observ