脂肪肉瘤(英語:Liposarcoma),是一種由脂肪細胞在深層軟組織(如腹膜後或大腿內側)異常增生導致的癌症。[1] 脂肪肉瘤是一種罕見的惡性腫瘤,顯微觀察顯示其與普通脂肪細胞類似。[2]
脂肪肉瘤通常為巨大的腫瘤,並且在最大的腫瘤周圍常伴有數個體積較小的腫瘤。
症狀與體徵
症狀通常為患者報告有異物生長在軟組織內,並且會導致疼痛或影響日常生活。
診斷
公認的診斷方法為進行組織學檢查,即切除並活檢。活檢通常會觀察到成脂細胞,一種充滿多個胞漿空泡,並且有由空泡導致的染色劑無法上色產生的黑色核的脂肪細胞。
脂肪肉瘤有多種亞型:
- 高分化脂肪肉瘤(Well-differentiated liposarcoma), synonymous with atypical lipomatous tumor—the former term is used almost exclusively for lesions in the retroperitoneum, while the latter is used for lesions arising elsewhere
- 去分化型脂肪肉瘤—高分化型脂肪肉瘤(Dedifferentiated liposarcoma—well-differentiated liposarcoma) adjacent to a more poorly differentiated tumor
- 圓形細胞型脂肪肉瘤(粘液細胞型脂肪肉瘤)(myxoid cell liposarcoma)
- 多形型脂肪肉瘤(Pleomorphic liposarcoma)
延伸閱讀
引用
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