Vulvar syringomas with deep extension: a potential histopathologic mimic of microcystic adnexal carcinoma
CMBC-1 Ductal, NOS type 1 0 CMBC-2 Ductal, NOS type 1 0 CMBC-3 Ductal, NOS type 0 0 CMBC-4 Ductal, NOS type 0 0 CMBC-5 Ductal, NOS type 0 0 CMBC-6 Ductal, basal phenotype 0 0 CMBC-7 Ductal, NOS type 1 0 CMBC-8 Ductal, NOS type 0 0 CMBC-9 Ductal, NOS type 0 0 CMBC-10 Ductal, NOS type 1 1 CMBC-11 Ductal, NOS type 0 0 CBMC-12 Ductal, NOS type 0 0 SGC-1 Eccrine carcinoma 1 1 SGC-2 Eccrine carcinoma, ex 0 0 spiradenocylindroma SGC-3 Porocarcinoma 1 1 SGC-4 Porocarcinoma 1 1 SGC-5 Microcystic adnexal carcinoma
1 1 SGC-6 Eccrine carcinoma 1 1 SGC-7 Porocarcinoma 1 1 SGC-8 Microcystic adnexal carcinoma
1 1 SGC-9 Microcystic adnexal carcinoma
1 1 SGC-10 Eccrine carcinoma 1 1 SGC-11 Eccrine carcinoma, ex 0 1 spiradenocylindroma Case ID [CK5.
Recently, some authors have considered syringomatous carcinoma and microcystic adnexal carcinoma
to be different tumors, but arguments advanced in favor of such a hypothesis appear unconvincing.
When making a diagnosis of hidradenocarcinoma, the differential diagnosis includes several other tumors, such as lipomas, hemangiomas, lymphangiomas, squamous cell carcinomas, basal cell carcinomas, malignant melanoma, other malignant adnexal carcinomas
, and metastatic tumors to the skin.
65) In addition, most primary adnexal carcinomas
and their metastases express p63, whereas visceral adenocarcinomas and their cutaneous metastases do not make this stain a useful adjunct to distinguish primary cutaneous adnexal carcinomas
from metastatic visceral adenocarcinomas.