几乎全部阳性(≥95%的病例阳性):
AE1/AE3、CAM 5.2、CK-PAN、EMA、CK18、CK7、CK8、PAX8、Vimentin通常阳性(<95%,≥75%的病例阳性):
CEA-P、ULEX - 1少数阳性(<35%,≥15%的病例阳性):
CK20、34bE12几乎全部阴性(<5%的病例阳性):
CK13、SNF5、SMARCB1、CK14、CK17、CK5/65.细胞异型明显,核仁突出,胞浆嗜酸性,常见细胞内黏液和镰刀状红细胞;
6.组织学和免疫表型特点上符合典型的肾髓质癌但无镰刀细胞贫血病者诊断为具有肾髓质表型的未分类型肾细胞癌。
肾集合管癌:与髓质癌存在明显的组织学重叠,免疫组化染色无INI1表达丢失,不表达OCT4,无镰刀细胞贫血。
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Amin MB, Smith SC, Agaimy A, et al. Collecting duct carcinoma versus renal medullary carcinoma: an appeal for nosologic and biological clarity. Am J Surg Pathol. 2014;38:871–874.
Liu Q, Galli S, Srinivasan R, et al. Renal medullary carcinoma: molecular, immunohistochemistry, and morphologic correlation. Am J Surg Pathol. 2013;37:368–374.
Sirohi D, Smith SC, Ohe C, et al. Renal cell carcinoma, unclassified with medullary phenotype: poorly-differentiated adenocarcinomas overlapping with renal medullary carcinoma. Hum Pathol. 2017;67:134–145.