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はじめに 弾性線維腫は,高齢者の肩甲骨下部に好発する比較的まれな腫瘤性病変である.われわれは弾性線維腫の1例を経験したので,若干の文献的考察を加えて報告する.
Elastofibroma is a relatively rare tumor that occurs commonly at the apex of scapula in elderly people. We report a case of elastofibroma of a female in her seventies. She visited our hospital with complaints of painful mass in her back, which was increasing in size. On the magnetic resonance imaging (MRI), the T1 and the T2-weighted images showed the same signal intensity as the muscle between the right scapula and the intercostal muscles. The internal fat component was cord-like, with high signal intensity. Based on the site of the tumor and characteristic findings on imaging, it was diagnosed as elastofibroma and resection was performed. Pathological findings revealed bundle-like proliferation of fibrous and spherical hyaline substances, together with collagen fibers. The hyaline substance stained in black on Elastica van Gieson staining and was confirmed to be elastic fiber. Thus, it was diagnosed as elastofibroma. The patient is on regular follow-up, with no recurrence after surgery.
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