de Saint Aubain Somerhausen Nicolas, Richard Christine, Priollet Dominique, Dequanter Didier
Service d'Anatomie Pathologique, Institut Jules Bordet, bruxelles.
Ann Pathol. 2004 Apr;24(2):176-8. doi: 10.1016/s0242-6498(04)93942-9.
We report a case of a rare tumor of the head and neck: ectopic hamartomatous thymoma. The tumor involved the sus-clavicular area of a 48 year-old male. Ectopic hamartomatous thymoma exclusively occurs in the sus-scapular region. Histologically, it is characterized by the association of spindle-cell fascicles, epithelial solid or cystic structures and foci of mature adipose tIssue. Spindle cells express diffusely cytokeratins. The differential diagnosis of ectopic hamartomatous thymoma includes mixed tumor of salivary glands, biphasic synovial sarcoma and sarcomatoid carcinoma. Ectopic hamartomatous thymoma is a benign tumor which does not recur after complete excision.
异位错构瘤性胸腺瘤。该肿瘤累及一名48岁男性的锁骨下区域。异位错构瘤性胸腺瘤仅发生于肩胛区。组织学上，其特征为梭形细胞束、上皮实性或囊性结构以及成熟脂肪组织灶的组合。梭形细胞弥漫性表达细胞角蛋白。异位错构瘤性胸腺瘤的鉴别诊断包括涎腺混合瘤、双相滑膜肉瘤和肉瘤样癌。异位错构瘤性胸腺瘤是一种良性肿瘤，完整切除后不会复发。
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