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하원,양완석,이지원,김선영 대한수부외과학회 2013 대한수부외과학회지 Vol.18 No.1
Amyloidoma is a solitary tumor characterized by localized deposition of amyloid in the absence of systemic amyloidosis. Soft tissue amyloidoma is rare and occurs most often in the mediastinum and retroperitoneum. Especially, soft tissue amyloidoma of the extremities is exceedingly rare and only 2 cases has been reported in the upper extremity. We report a patient with soft tissue amyloidoma in the upper extremity. 아밀로이드종은 전신성 아밀로이드증 없이 국소적으로 아밀로이드가 침착되어 종괴를 형성하는 것이다. 연부조직 아밀로이드종은 드물게 발생하고 주로 종격동과 후복막에 위치하며, 특히 사지의 연부조직에 발생하는 경우는 극히 드물어현재까지 상지에는 2예만이 보고되고 있다. 저자들은 일반적으로 호발하는 부위가 아닌 상지의 연부조직에 발생한 아밀로이드종으로 진단받은 드문 임상 예를 경험하였기에 보고하는 바이다.
하원,이지원,최재일,양완석,김선영,Ha, Won,Lee, Ji Won,Choi, Jae Il,Yang, Wan Suk,Kim, Sun Young 대한두개안면성형외과학회 2013 Archives of Craniofacial Surgery Vol.14 No.1
Schwannomas are well-differentiated solitary benign tumors that originate from the schwann cells of the nerve sheath. They can readily occur in the head and neck regions, but the schwannoma originating from the infraorbital nerve is extremely rare and usually painless, slow-growing, and without specific symptoms. The author experienced a rare case of infraorbital schwannoma, which was completely removed through the intraoral approach. A 20-year-old woman was admitted to our hospital for a painless, solid and circular mass located on the right infraorbital region. The eyeball movement and visual field were normal. There was no globe displacement or proptosis. Preoperative computed tomography demonstrated $13{\times}10{\times}5mm$-sized soft tissue mass. On March 2011, the mass was removed through an intraoral approach. On histopathological examination, the gross specimen consisted of a smooth, well-encapsulated and light yellowish solid mass, measuring $12{\times}7{\times}5mm$. Microscopically, it presented a typical manifestation of schwannoma with Antoni A area with Verocay body, and Antoni B area on H&E stain. The result of the immunohistochemical staining was positive for the S-100 protein. The patient had hypoesthesia of the nasal septum and vestibule in the postoperative period, and this finding confirmed that the internal nasal branch of infraorbital nerve was the nerve in which the schwannoma originated. Infraorbital schwannomas are very rare and must be included in the differential diagnosis of the orbital masses inferior to the eyeball. In the case of early diagnosis, the small-sized infraorbital schwannomas can be completely removed without any scar through an intraoral approach.