- Author:
Hyo Jung AN
1
;
Jung Eun SEOL
;
Ji Young YUN
;
Mi Seon KANG
Author Information
- Publication Type:Case Report
- Keywords: Basal cell carcinoma; Eccrine porocarcinoma
- MeSH: Carcinoma, Basal Cell*; Eccrine Porocarcinoma*; Humans; Male; Middle Aged
- From:Annals of Dermatology 2018;30(5):602-605
- CountryRepublic of Korea
- Language:English
- Abstract: A ‘collision’ tumor refers to the existence of two different neoplasms within the same tumor. Sometimes, the term ‘biphasic tumor’ is also used. However, a ‘collision’ tumor is defined as the occurrence of two neoplasms within proximity of each other yet maintaining distinctly defined, separate boundaries. In contrast, a ‘biphasic’ tumor demonstrates two or more phenotypically distinct neoplastic cell populations merging within the same space. Here, we report a case of collision tumor associated with sarcomatoid eccrine porocarcinoma and basal cell carcinoma arising in a 57-year-old male patient.