To the Editor.—
Bullous pemphigoid was described as a distinct clinical entity by Lever1 in 1953 and has been reported to have occurred with several autoimmune diseases, ie, systemic lupus erythematosus (SLE),2 polymyositis,3 and rheumatoid arthritis.4 It has also been occasionally reported with other cutaneous diseases: Kaposi sarcoma,5 lichen planus,6 and pemphigus.7We report here on a patient with psoriasis in whom bullous pemphigoid developed after ultraviolet exposure.
Report of a Case.—
A 59-year-old man was hospitalized in June 1975 with a six-month history of psoriasis. Two weeks before admission he had a generalized psoriatic flare that evolved into an exfoliative erythroderma. Past medical history was unremarkable. Physical examination revealed generalized erythroderma, with distinct psoriatic plaques on the elbows, knees, legs, back, and chest. Laboratory studies were as follows: hemoglobin, 13.6 gm/100 ml; hematocrit, 42.9%; total leukocyte count 9.6%, with 25% band forms,
Ahmed AR, Winkler NW. Psoriasis and Bullous Pemphigoid. Arch Dermatol. 1977;113(6):845. doi:10.1001/archderm.1977.01640060141023