Urso C
Institute of Anatomic Pathology, University of Florence, Italy.
J Clin Pathol. 1991 Sep;44(9):781. doi: 10.1136/jcp.44.9.781.
Trabecular carcinoma has been renamed as Merkel cell carcinoma because, ultrastructurally, tumour cells resemble Merkel cells of the skin. Recently, evidence of exocrine (sweat gland) differentiation in some trabecular carcinomas has been reported. These findings raise two possibilities: (1) trabecular carcinomas are a heterogeneous group of lesions; or (2) that trabecular carcinomas are glandular tumours, in which exocrine features are rarely detected.
小梁癌已被重新命名为默克尔细胞癌,因为在超微结构上,肿瘤细胞类似于皮肤的默克尔细胞。最近,有报道称在一些小梁癌中存在外分泌(汗腺)分化的证据。这些发现提出了两种可能性:(1)小梁癌是一组异质性病变;或(2)小梁癌是腺性肿瘤,其中外分泌特征很少被检测到。