Huge Extra-skeletal Osteoma in Head and Neck Region-A Rare Case Report

頭頸部區域之大型骨骼外骨瘤－罕見病例報告

張允中(Yeun-Jong Chang) ； 劉崇基(Chung-Ji Liu)

《臺灣口腔顎面外科學會雜誌》 28卷4期 (2017/12) Pp. 275-285

摘要

Osteoma is a slow growing neoplasm and usually asymptomatic. Many patients noticed the lesion because of deformity of appearance. Osteoma can derive from endosteum, periosteum or developed within muscles. Histology characteristics are proliferation of compact and/or cancellous bone with surrounding connective tissue. Osteoma over head and neck region is uncommon. Extra-skeletal osteoma is extremely rare. We report a case of huge fibro-osseous lesion over inner side of left mandible extend to infratemporal fossa in a 24 years old male. He carne to our Hospital for help because of gradually left facial swelling without pain since he was 14 years old. Clinical examinations revealed facial asymmetry without mouth opening limitation and difficultly in mastication. No palpable lymph node enlargement was noted. After comprehensive survey of the mass, complete excision of the lesion was performed under general anesthesia. Post-operative pathology report revealed an extra-skeletal osteoma which is very rare in documentation.

關鍵字

Head and neck tumor ； Peripheral osteoma ； Extraskeletal osteoma

並列摘要

骨瘤是一種緩慢生長且通常是沒有症狀的腫瘤。多數病人因為外觀上的改變而注意到這個疾病。骨瘤可以從內膜、骨膜或是肌肉組織間發育形成。組織學上的特徵為被結締組織包圍的增生緻密骨和海綿骨。頭頸部區域的骨瘤並不常見，骨骼外骨瘤更為稀少。本篇報告一位24歲男性在下顎骨內側延伸至顳下窩的大型纖維骨性腫瘤。病人從14歲起雖沒有疼痛，但左側顏面逐漸腫脹因而至本院求診。臨床檢查發現臉部不對稱但沒有張口受限及咀嚼困難，亦沒有發現淋巴結腫大。在全面的檢查評估後，於全身麻醉下進行腫瘤切除。術後病理報告為骨骼外骨瘤，在文獻上是極為罕見的。

並列關鍵字

頭頸部腫瘤 ； 周邊性骨瘤 ； 骨骼外骨瘤