Urticaria Pigmentosa with Systemic Mast-Cell Disease

Bone Lesion in Systemic Mastocytosis

“…Condensation of collagen fibres forms the osteal seam at the periphery of the bone trabeculae (Stark et al, 1956). Reports have also been made of mast cells infiltrating around the walls of the vessels, at times proliferating in the subendothelial layers and protntding into the lumen, and Partially Or (Loewenthal, 1957). This could account for the increased density and the increased numbers of the trabeculae as seen roentgenographically and pathologically.…”

“…This could account for the increased density and the increased numbers of the trabeculae as seen roentgenographically and pathologically. Reports have also been made of mast cells infiltrating around the walls of the vessels, at times proliferating in the subendothelial layers and protntding into the lumen, and Partially Or (Loewenthal, 1957). This could explain the contained many mast cells.…”

Bone Lesions of Urticaria Pigmentosa in Childhood

“…Mast cell infiltration of parenchymatous organs has been reported (Ellis, 1949;Reilly, Shintani and Goodman, 1955;Berlin, 1955;Brodeur and Gardner, 1956;Loewenthal, Schen, Berlin and Wechsler, 1957;Rider, Stein and Abbuhl, 1957), and the appearance of mast cells in the peripheral blood has been called a mast cell leukaemia (Hissard, Moncourier and Jacquet, 1950;Waters and Lacson, 1957).…”