Cutaneous pemphigus vulgaris with absence of desmoglein 1 autoantibodies. An example of the extended desmoglein compensation theory.

A 79 year-old male patient presented clinically as a typical case of pemphigus foliaceus. He displayed a seborrhoeic pattern of crusting and erosions with an absence of oral involvement. Surprisingly, a biopsy showed suprabasilar acantholysis and direct immunofluorescence consistent with pemphigus vulgaris.

Dermatomyositis panniculitis: a case report.

Dermatomyositis-related panniculitis is a rare cutaneous manifestation of dermatomyositis. There are few reported cases in the medical literature. We present the case of a 60-year-old woman with a 2-year history of dermatomyositis and recent biopsy-confirmed panniculitis treated with prednisone, cyclophosphamide and i.

Seborrhoeic keratosis and malignancy: collision tumour or malignant transformation?

A retrospective study of 813 histological specimens reported as seborrhoeic keratoses included 43 (5.3%) associated with non-melanoma skin cancer. Intraepidermal carcinoma (squamous cell carcinoma in situ) was the most common of these (36).