Diagnostic dilemma whether Malignant hidroacanthoma or seborrheic keratosis

Eccrine porocarcinoma is a rare cutaneous neoplasm that mainly affects elderly people and grows slowly over a long period but often experiences an accelerated growth phase. Malignant eccrine poroma is a rare skin adnexal tumor arising from the eccrine sweat glands. It arises from different sites in the body extremities, palm and trunk. Porocarcinoma is a rare condition, and we are presenting a case of porocarcinoma of pinna.