title: Organized hematoma of the maxillary sinus: a clinicopathologic study of 5 cases.
abstract: Organized hematoma of the maxillary sinus is rare. Its pathogenesis is still not clear, and it appears to have multiple causes. We report the clinical, clinicopathologic, and immunohistochemical findings in 5 patients-3 men and 2 women, aged 19 to 68 years (mean: 40.2)-with pathologically proven organized hematoma of the maxillary sinus. In all 5 cases, we were able to successfully perform curative treatment via endoscopic sinus surgery. Our findings suggest that most organized hematomas are angiomatous. Immunohistochemical analysis identified the presence of proliferative activity.
authors: Department of Otolaryngology-Head and Neck Surgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan. h-yokoi@ks.kyorin-u.ac.jp.
authors: Hidenori
authors: H
authors: Yokoi
authors: Atsushi
authors: A
authors: Arakawa
authors: Fumihiko
authors: F
authors: Matsumoto
authors: Naoko
authors: N
authors: Yokoi
authors: Katsuhisa
authors: K
authors: Ikeda
authors: Naoyuki
authors: N
authors: Kohno
mesh_terms: D000328:Adult; D000368:Aged; D004724:Endoscopy; D004844:Epistaxis / Q000209:etiology; D005260:Female; D006406:Hematoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D055815:Young Adult