Melanoacanthoma / Pigmented Seborrhoeic Keratosis: A Rare Variant Of A Common Entity

Melanoacanthoma or pigmented seborrhoeic keratosis is a rare variant of seborrhoeic keratosis which commonly occurs as deeply pigmented lesion in the head and neck or trunk of elderly patients. Melanoacanthomas shows proliferation of dendritic melanocytes and basaloid keratinocytes on histology. The lesion can clinically mimic malignant melanoma and variants a histopathological examination for the right diagnosis and proper management.