Coexistence of disseminated superficial and giant porokeratosis of Mibelli with squamous cell carcinoma.

Porokeratosis of Mibelli is a genetic disease transmitted as an autosomal dominant trait. The giant type of porokeratosis is a relatively rare entity and is associated with an increased risk of malignancy. The aim of this article is to present this rare case of giant porokeratosis associated with squamous cell carcinoma.