上顎洞に進展したchronic expanding hematoma の1例

• Published in: 日本口腔外科学会雑誌 Vol. 58; no. 3; pp. 132 - 136
• Main Authors: 菊池, 建太郎, 須賀, 則幸, 重松, 久夫, 鈴木, 正二, 坂下, 英明, 草間, 薫
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.03.2012
• Subjects: 上顎洞; 慢性拡張性血腫
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.58.132

Chronic expanding hematoma （CEH） is a lesion that develops gradually after trauma or surgery. Generally, it arises in the pleural cavity, lower leg, abdomen, or backj occurrence in the head and neck region is uncommon. We report a case of CEH arising in the maxillary sinus of a 47-year-old man who was referred to our hospital for further evaluation of a lesion in the left maxillary sinus. No subjective symptoms were reported at presentation, and he had no remarkable family or past medical history. Panoramic X-ray films showed a radiopaque domeshaped mass in the left maxillary sinus, and computed tomographl demonstrated a well-circumscribed round lesion. The lesion, which was clinically diagnosed as a maxillary tumor, was resected under general anesthesia. Histopathological examination revealed that the tumor consisted of an inner layer of hematoma with capillaries, a middle layer of granulation tissue, and an outer layer of dense fibrous connective tissue with calcification. The histopathological diagnosis of the lesion was CEH. There was no sign of recurrence 19 months after the operation.