Patient with urticaria pigmentosa, extensive erythema and telangiectasia resembling telangiectasia macularis eruptive perstans.
Urticaria pigmentosa lesions on the trunk of a child. (Courtesy of St John's Institute of Dermatology, London, UK.)
Telangiectasia macularis eruptive perstans. (Courtesy of St John's Institute of Dermatology, London, UK.)
Algorithm for reviewing adults and children with mastocytosis. ASM, aggressive systemic mastocytosis; BM, bone marrow; CM, cutaneous mastocytosis; FBC...
Schematic diagram of KIT, the receptor for stem cell factor on mast cells.
Urticaria pigmentosa on the thighs of an adult. (Courtesy of St John's Institute of Dermatology, London, UK.)
Pink mastocytoma in an infant. (Courtesy of St John's Institute of Dermatology, London, UK.)
Histopathology of skin lesions. (a) Urticaria pigmentosa in an adult showing mast cell infiltrates predominantly around blood vessels and skin appenda...
Positive Darier's sign in a nodule of urticaria pigmentosa in a young child. (Courtesy of Norfolk and Norwich University Hospital, UK.)
Diffuse cutaneous mastocytosis on the back.
Bone marrow biopsy from an adult with indolent systemic mastocytosis, H&E, medium power. (a) Focal aggregates of mast cells. (b) Diffuse and spindle‐s...
Wealing is confined to the lesions of urticaria pigmentosa, not the intervening skin at three different pressures of a dermographometer (0, 2, 5).
Algorithm for the assessment of patients with a raised tryptase but no evidence of mastocytosis in the skin (MIS). REMA score, Red Española de Mastoci...