[FGF23 tumor induced osteomalacia with localization of neoplasm in the tympanic cavity]. / FRF23-indutsirovannaya osteomalyatsiya opukholevogo geneza s lokalizatsiei novoobrazovaniya v barabannoi polosti.

Tumor induced osteomalacia is a rare paraneoplastic syndrome caused by mesenchymal tumors that secrete fibroblast growth factor 23 (FGF23). Patients complain of progressive bone pain, muscle weakness and brittle fractures. Delayed diagnosis of osteomalacia caused by a tumor is often found in clinical practice. When verifying the exact localization of the neoplasm, radical removal within healthy tissues is recommended. The article considers a clinical example of FGF23 tumor induced osteomalacia with localization of neoplasm in the tympanic cavity.

[Congenital complete bony unilateral atresia of the left choana in a 30-year-old woman]. / Vrozhdennaya polnaya kostnaya odnostoronnyaya atreziya levoi khoany u zhenshchiny 30 let.

According to literature, the average age of children with unilateral atresia of the choan is six years nine months. Unilateral complete atresia of the choan makes it difficult to diagnose early: the initial diagnosis can be established in the second year of life and later, already at school age. In Russian and foreign literature in recent years, cases of diagnosing congenital atresia of choanomas in older children are known, the maximum age of children is 17-18 years, it is noted that such cases are very rare. The article describes the case of congenital unilateral complete bone atresia of the choan in a woman of 30 years. The patient underwent a complete otorhinolaryngological examination and endoscopic choanotomy with the installation of a silicone stent in the hole formed.

[Prevention and treatment of post-implantation maxillary sinusitis]. / Profilaktika i lechenie postimplantatsionnykh verkhnechelyustnykh sinusitov.

The state of the nasal cavity, especially the region of the osteomyomatic complex, plays a significant role in the development of chronic maxillary sinusitis. Odontogenic maxillary sinusitis, as a complication of dental implantological treatment on the upper jaw, is increasingly common. The aim of the study was to increase the effectiveness of prophylaxis and treatment of odontogenic purulent upper jaw sinusitis during reconstructive operations on the alveolar region of the upper jaw. 3 groups of patients were examined: before dental treatment, after dental treatment in the development of odontogenic maxillary sinusitis and 30 patients were selected and examined, who underwent reconstructive surgeries on the alveolar process of the upper jaw and in whom the postoperative period was without complications. The diagnoses of 1st and 2nd group patients required surgical treatment. FESS allows restoring the physiological aeration of maxillary sinuses as naturally as possible, which is important for correct reparative bone regeneration in the alveolar region of maxilla.