[Possibilities of differential diagnosis of chronic diseases of the nasal cavity after surgical treatment and topical antibiotic therapy].

Objective: The study was performed to assess the endoscopic state of the nasal mucosa after the use of local anti-inflammatory and antibacterial therapy, in particular, Polydexa nasal spray with phenylephrine containing Dexamethasone sodium metasulfobenzoate + Neomycin + Polymyxin B + Phenylephrine, and for the treatment of granulomatosis with polyangiitis.

Material And Methods: The study included 940 patients who underwent examination and treatment for chronic rhinosinusitis in the clinic of otorhinolaryngology of I.P.

[Inferior turbinate neoplasms].

Introduction: The main aim of the work was to describe a rare clinical case of osteoma of inferior turbinate. The interest of the case is that such tumors are extremely rare.

Results: A female patient of 63 years old attended an ENT clinic.

[Methods of maxillary sinus foreign bodies removal].

The Aim: To characterize methods of extraction of foreign bodies of maxillary sinuses, features of postoperative treatment of patients.

Material And Methods: The experience of treatment of patients with maxillary sinuses foreign bodies in the clinic of ENT of PFSMU of St.Petersburg is presented.

[Prevention of frontal pocket stenosis after endoscopic transnazal surgery on the frontal sinus and endoscopic septoplasty in acute and chronic pathology of frontal sinuses].

Unlabelled: The main idea of our manuscript is prevention of frontal recess stenosis after endoscopic endonasal frontal sinus surgery and septoplasty during to acute and chronic frontal sinuses pathology.

Purpose: To offer an effective method to prevent postoperative frontal recess stenosis after endoscopic endonasal frontal sinus surgery and surgical correction of intra-nasal structures.

Material And Methods: In our manuscript we analyzed 274 cases of endoscopic endonasal frontal sinus surgery: postoperative treatment (local and systemic).

[Potential of computer-assisted navigation systems in the surgical treatment of chronic sinusitis, nasal cavity and paranasal sinuses tumors].

Purpose: To describe the principles of medical navigation systems in head and neck surgery, the possibility of their application and the existing limitations.

Material And Methods: The article presents the generalized experience of image-guidance equipment using in the ENT Department of First Pavlov State Medical University. 298 operations, mostly FESS, were performed from 2013 to 2018 under the control of navigation system.