[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.

Endoscopic endonasal removal of median palatine cyst.

Unlabelled: Endoscopic endonasal removal of median palatine cyst.

Problem: A 49-year-old man presented with a median palatine cyst, as an incidental finding in a work-up of vision disturbance, due to a cyst in the sphenoid sinus.

Methodology: The median palatine cyst was removed with a diode laser in the contact mode under endoscopic vision; forceps were used to remove the sphenoid sinus cyst.

[Endoscopic endonasal surgery of paranasal sinus osteomas].

This article was designed to summarize the experience gained withendoscopic endonasal removal of paranasal sinus osteomas during the period from January 2013 till February 2016. In addition a review of the relevant literature is presented encompassing the publicationsthat provide information about etiology, pathogenesis, clinical picture, diagnostics, and treatment of bone tumours. The objective of the study was to enhance the effectiveness and safety of the surgical treatment of the patients presenting with paranasal sinus osteomas.

Case report: Endoscopic endonasal removal of large osteoma in the ethmoid sinus.

Problem: A 25-year-old man presented with a large osteoma in the right ethmoidal sinus.

Methodology: The osteoma was removed by an endoscopic endonasal approach with a curved diamond drill and an electromagnetic navigation system.

Result: Computed tomography 3 days after surgery showed complete removal of the osteoma and normal position of the right eyeball.