Clinical Study of 
Primary Maxillary Sinus Hypoplasia

Keimyung Medical Journal 2003;22(Suppl):81-87.

Clinical Study of Primary Maxillary Sinus Hypoplasia

일차성 상악동 형성부전의 임상적 연구

안병훈

Abstract

Identification of primary maxillary sinus hypoplasia (PMSH) is important for the planning of surgery in order to avoid possible complications. The aim of this study was to investigate the incidence of PMSH; abnormalities associated and the relationship of the anatomical variations and paranasal sinusitis; and to analyze outcomes of PMSH and non-PMSH groups after endoscopic sinus surgery. I set the radiologic diagnostic criteria of PMSH; and retrospectively analyzed the relationship between the anatomical variarions of the nasal cavity; paranasal sinuses appeared on paranasal sinus CT scans and postoperative results. The incidence of unilateral and bilateral PMSH inceluded 18 cases (10.2%). According to Bolger’s classification; there were 19 sites (5.37%) of type Ⅰ; 6 sites (1.69%) of type Ⅱ; and 2 sites (0.56%) of type Ⅲ. agger nasi cell (66.7%) and uncinate process abnormalities (44.4%) were common anatomical variations. Inflammation was observed most frequently at ostiomeatal unit; followed by the maxillary sinus. The postoperative results showed 55.6% good; 33.3% fair; 11.1% poor; and 0% fail. There was no significant differences in outcome between the PMSH group and the non-PMSH group after endoscopic sinus surgery.

Key Words: Hypoplasia, Incidence, Maxillary sinus, Prognosis