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KMID : 1130920190230020074
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Journal of Korean Foot and Ankle Society
2019 Volume.23 No. 2 p.74 ~ p.77
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Fibroma of the Extensor Digitorum Longus and Extensor Digitorum Brevis Conjoined Tendon Sheath: A Case Report
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Park Se-Jin
Lee In-Gyu
Cho Yong-Un
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Abstract
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Fibroma of the tendon sheath (FTS) was initially described in 1936 by Geschickter and Copeland as a benign firmed soft tissue tumor that is rare and less common than another soft tissue tumors, especially giant cell tumors (GCT) of the tendon sheath. The common distinct feature is a slow-growing least painful rare entity arising from the tendon or tendon sheath. FTS is detected mostly in the fingers, hands and wrists but less commonly in the foot. Very few cases of FTS have been described arising from a flexor tendon of the foot. This article describes a 51-year-old patient with FTS that developed in the extensor tendon of the foot, which is the only known FTS to form in this area. Heterogeneous low signal intensity in both the T1- and T2-weighted images was observed in magnetic resonance imaging. The lesion was excised completely by open surgery. Histologically, it showed randomly arranged, fibroblast-like spindle cells in dense fibrous tissue and had insufficient hemosiderin-laden macrophages that are typical for GCT.
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KEYWORD
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Fibroma, Foot
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