A Case of Multiple Giant Porokeratosis / 대한피부과학회지

ABSTRACT

We report a case of an 81 year-old man with multiple, giant porokeratosis, who had variable-sized erythematous, scaly plaques, ranging from 3x4cm to 10x2cm, on his trunk, extremities and genital area. The skin lesions appeared 20 years ago and had increased gradually and slowly, both in size and number. Histologic examination revealed a typical cornoid lamella and loss of the underlying granular layer. Giant porokeratosis was diagnosed on the basis of overwhelming clinical features and characteristic histologic findings. Giant porokeratosis is a rare clinical condition among several subtypes of porokeratosis.