Linear IgA bullous dermatosis associated with ulcerative proctitis: treatment challenge.

Linear IgA bullous dermatosis is a rare bullous disease in children and adults that can be associated with autoimmune conditions, malignancies, infections, or medication exposure. The definitive diagnosis relies on the biopsy. A 58-year-old man presented to our clinic with a pruritic vesicular and bullous eruption.

Psoriasis.

An active duty Sailor has a long history of skin lesions on his scalp, chest, back, and legs. He was evaluated and treated previously but could not recall the specific details. He is diagnosed with plaque psoriasis, an immune-mediated chronic disease.

Indeterminate cell histiocytosis successfully treated with narrowband UVB.

We present a 47-year-old man with a sudden eruption of more than 100 reddish-brown papules, which histologically exhibited a dense dermal proliferation of large mononuclear cells with vesicular nuclei and abundant pale cytoplasm. Electron microscopy and immunohistochemistry revealed findings consistent with indeterminate cell histiocytosis and the patient responded well to treatment with narrowband UVB therapy.