Bajaj Anubha, Transmutation of Sweat Glands - Eccrine Porocarcinoma, Journal of Clinical and Diagnostic Pathology, Volume 1, Issue 1, 2019, Pages 19-27, ISSN 2689-5773, https://doi.org/10.14302/issn.2689-5773.jcdp-19-2890. (https://oap-researcharticles.org/jcdp/article/1118) Abstract: Initially described by Pinkus and Mehregan in 1963 as an  epidermotropic eccrine carcinoma, eccrine porocarcinoma cogitates an exceptional sweat gland malignancy. Eccrine porocarcinoma was adapted as a nomenclature by Mishisma and Morikoin in 1969. The neoplasm is a malignant analogue of eccrine poroma which is a benign tumour of intra-dermal sweat glands. Eccrine porocarcinoma  is an invasive malignancy of eccrine sweat gland with an acrosyringial genesis. Nomenclature includes epidermotropic eccrine carcinoma, eccrine poroepithelioma, malignant  hidroacanthoma simplex, malignant intra-epidermal eccrine poroma, malignant eccrine poroma, malignant syringoacanthoma and dysplastic poroma (1,2). Sweat gland carcinoma are categorized into subgroups with the classical eccrine porocarcinoma  or  eccrine adenocarcinoma as a prevalent subcategory. Lesions are enlisted as          Classic type eccrine adenocarcinoma ( eccrine porocarcinoma). Syringoid eccrine carcinoma                                                                                   Microcystic adnexal carcinoma                                                                 Mucinous eccrine carcinoma                                                           Muco-epidermoid carcinoma                                                                           Adenoid cystic carcinoma                                                                         Aggressive digital papillary adenoma/adenocarcinoma Keywords: Mucinous eccrine carcinoma; Adenoid cystic carcinoma