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Figure 46.1
Patient with urticaria pigmentosa, extensive erythema and telangiectasia resembling telangiectasia macularis eruptive perstans.
Figure 46.5
Urticaria pigmentosa lesions on the trunk of a child. (Courtesy of St John's Institute of Dermatology, London, UK.)
Figure 46.9
Telangiectasia macularis eruptive perstans. (Courtesy of St John's Institute of Dermatology, London, UK.)
Figure 46.13
Algorithm for reviewing adults and children with mastocytosis. ASM, aggressive systemic mastocytosis; BM, bone marrow; CM, cutaneous mastocytosis; FBC...
Figure 46.2
Schematic diagram of KIT, the receptor for stem cell factor on mast cells.
Figure 46.6
Urticaria pigmentosa on the thighs of an adult. (Courtesy of St John's Institute of Dermatology, London, UK.)
Figure 46.10
Pink mastocytoma in an infant. (Courtesy of St John's Institute of Dermatology, London, UK.)
Figure 46.3
Histopathology of skin lesions. (a) Urticaria pigmentosa in an adult showing mast cell infiltrates predominantly around blood vessels and skin appenda...
Figure 46.7
Positive Darier's sign in a nodule of urticaria pigmentosa in a young child. (Courtesy of Norfolk and Norwich University Hospital, UK.)
Figure 46.11
Diffuse cutaneous mastocytosis on the back.
Figure 46.4
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...
Figure 46.8
Wealing is confined to the lesions of urticaria pigmentosa, not the intervening skin at three different pressures of a dermographometer (0, 2, 5).
Figure 46.12
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...