The lesion was primarily excised at another hospital, and eccrine porocarcinoma was diagnosed (immunohistochemical profile: CK7(+), BerEP4(+), p63(+), EA(+), CK19(+ in ~30%), CD117(focally +), D240(−), S100(−)). The gene discussed is PDPN; the disease is eccrine porocarcinoma.