SUMMARY
Introduction: The size of the middle nasal concha, uncinate process and natural anastomosis is an important parameter in the structure of OMC. The aim of our study was to improve the assessment of the morphological structure of OMC components according to SCT and to identify features of the anatomical structure, potentially associated with the development of complications of chronic inflammatory processes in this area.

Materials and methods: The study involved evaluation of a total of 226 spiral computer tomograms (SCTs) of
25 – 60-year-old males and females (115 males and 111 females), divided into groups according to the severity of abnormal changes in PNSs. The length of the uncinate process, the width of the middle nasal concha and the dimensions of the natural anastomosis were determined.
Results: The study showed a significant (p = 0.04) reduction of bone density in the uncinate process with chronic inflammatory process in the maxillary sinus accompanied by hyperplasia of the mucous membrane to 5 mm. Haller cell was determined in 7 (3.097 %) patients. Its presence was accompanied by mucosal hyperplasia in all cases. The average volume of Haller cell was 7.42 ± 2.6 mm3 in the average anastomosis size in patients with Haller cell of 3.32 ± 0.82 mm.
Conclusions: SCT is an intravital, non-invasive and informative method for determination of the features of the OMC structure. Features of the anatomical structure of OMC can be associated with hypoventilation of the maxillary sinus and the development of chronic inflammatory process.
Key words: osteomeatal comlex, computed tomography, uncinate process, natural anastomosis, Haller cell.
Lek Obz, 2020, 69 (10): 334-338

Alina S. NECHYPORENKO, Victoriia V. ALEKSEEVA, Ludmila V. SYCHOVA, Viktor M. CHEVERDA, Nadiia O. YUREVYCH, Vitaliy V. GARGIN

1 Systems Engineering Department, Kharkiv National University of Radio Electronics, Kharkiv, Ukraine
2 Department of Histology, Cytology, Embryology, Kharkiv National Medical University, Kharkiv, Ukraine
3 Department of Physical Rehabilitation, Sports Medicine with a course of Physical Education and Healh, Kharkiv National Medical University, Kharkiv, Ukraine
4 Department of Surgery№2, Kharkiv National Medical University, Kharkiv, Ukraine
5 Department of Otorhinolaryngology, Kharkiv National Medical University, Kharkiv, Ukraine
6 Department of Pathological Anatomy, Kharkiv National Medical University, Kharkiv, Ukraine

Alina S. NECHYPORENKO, Victoriia V. ALEKSEEVA, Ludmila V. SYCHOVA, Viktor M. CHEVERDA, Nadiia O. YUREVYCH, Vitaliy V. GARGIN: Anatomical prerequisites for the development   of rhinosinusitis. Lek Obz, 2020, 69 (10): 334-338