“…Our case represents a rare clinical presentation that occurred on the scalp of a relatively young patient with an unexpected histopathologic finding of cytoplasmic eosinophilia. To date, only 16 cases of porocarcinoma have been reported on the scalp ( Ekmekcı and Lebe, 2013 , Grimme et al, 1999 , Kim et al, 2012 , Kose et al, 2006 , Matloub et al, 1988 , Permi et al, 2011 , Puttick et al, 1986 , Ritter et al, 1999 , Shaw et al, 1982 , Sigal et al, 1997 , Tarkhan and Domingo, 1985 , Urso et al, 2001 , Vessels et al, 2011 ). Of these 16 cases, three of the porocarcinomas metastasized, two demonstrated a recurrent local invasion, and one had an intracranial extension.…”