Bone Lesions in Urticaria Pigmentosa

Bone lesions of urticaria pigmentosa in childhood.

Urticaria pigmentosa is a dermatosis characterized clinically by areas of pigmented skin which show marked urtication when a stimulus such as a scratch or a pinprick is applied. Initially they occur as pink urticarial lesions, but instead of fading they persist as oval or round, light or dark brown macules or, less commonly, papules or nodules. Histologically, the skin lesions show an increased...

Studies on urticaria pigmentosa. I. Release of a heparinoid material into the circulation following direct stimulation of urticaria pigmentosa lesions.

Urticaria pigmentosa (1) is an uncommon, chronic, inflammatory disease of the skin characterized histologically by localized deposits of mast cells in the corium and around the cutaneous appendages. Clinically it manifests itself by the appearance of pigmented macules and papules which wheal on stroking or other physical irritation. It has been shown that the metachromatic granules contained in...

lymphoblastic leukaemia mimicking urticaria pigmentosa

A 37-year-old female developed what appeared to be the typical cutaneous manifestations of urticaria pigmentosa. These preceded the peripheral blood changes of acute null cell lymphoblastic leukaemia and skin biopsy revealed that the cutaneous changes were due to leukaemic infiltration. Chemotherapy resulted in clearance of the rash. The importance of skin biopsy in patients presenting with sus...

Dermatoscopic findings of urticaria pigmentosa*

Mastocytosis is a rare disease characterized by proliferation and accumulation of mast cells in various organs. The maculopapular cutaneous mastocytosis is divided into three subtypes: papular/plaque variant, urticaria pigmentosa and eruptive macular telangiectasia perstans. Dermoscopic may help to better characterize the different forms of cutaneous mastocytosis. We report a 55 year-old female...

Asthma and gastroesophageal reflux in a girl with urticaria pigmentosa.