The authors describe a rare case of thymolipoma in a 26-year-old, otherwise healthy woman presenting with general fatigue. Radiological examinations disclosed a large anterior mediastinal mass. Macroscopically, the resected tumor was approximately 5 x 10 cm(2), with nodular configuration, and microscopically, 3 components were identified: a normal thymic rim, hyperplastic thymic tissue, and a typical thymolipomatous component at the periphery of the hyperplastic area. The predominant component of the tumor was hyperplastic thymic tissue. The tumor was diagnosed as thymolipoma at the initial stage of development. This case suggests the histogenesis of thymolipoma-fatty regression or infiltration of fatty tissue into a previously hyperplastic thymus.
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机译：作者描述了一名26岁的胸腺脂肪瘤的罕见病例，该患者本来是健康的，表现出全身性疲劳。放射学检查发现前纵隔肿块较大。在肉眼上，切除的肿瘤大约为5 x 10 cm（2），呈结节状，在显微镜下，鉴定出3个成分：正常胸腺缘，增生性胸腺组织和增生区周围的典型胸腺脂肪瘤成分。肿瘤的主要成分是增生的胸腺组织。该肿瘤在发展的初期被诊断为胸腺脂肪瘤。该病例提示胸腺脂肪瘤的组织发生-脂肪退化或脂肪组织浸润到先前增生的胸腺中。
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