外科病理诊断中肿瘤发生皮肤转移并不少见,其提示肿瘤复发或发生结外扩散。某些恶性肿瘤如肾细胞癌发生皮肤转移的临床症状可能会导致皮肤原发性恶性肿瘤的诊断。有3%~11%肾细胞癌可发生皮肤转移,而皮肤转移性肾细胞癌的形态学特点与皮肤原发的附属器肿瘤特别是具有透明细胞分 Surgical pathological diagnosis of tumor skin metastasis is not uncommon, suggesting that tumor recurrence or extranodal diffusion occurred. The clinical manifestations of skin metastases in certain malignancies, such as renal cell carcinoma, may lead to the diagnosis of primary cutaneous malignancies. There are 3% ~ 11% of renal cell carcinoma skin metastasis occurs, and the characteristics of skin metastatic renal cell carcinoma and the skin of the primary accessory tumor with a clear cell fraction