1,发病年龄29-79岁,平均53岁,无性别好发倾向;
2,临床表现常为腹部肿块或不适,约20%为功能性,过分泌睾酮或醛固酮;
3,瘤体较大,平均直径13cm, 切片灰黄灰褐,易碎,常见出血坏死,可见周围器官累及(如肾脏)等;
4,组织学上既有普通型或亚型的肾上腺皮质癌成分,又有梭形细胞或多形性肉瘤成分;后者可为非特异性的肉瘤,也可为特异性的肉瘤,最常见为横纹肌肉瘤、软骨肉瘤和骨肉瘤。
1,转移性肉瘤样癌:结合病史
2,肾细胞癌累及:表达PAX8
3,去分化脂肪肉瘤:P16, CDK4, MDM2; FISH检测MDM2扩增。
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