. The British journal of dermatology . hic haimorrhagic sarcoma cases as theyare in the present case, in which they (see Fig. 3), in some parts ofthe sections, form dense plasma-cell infiltrates, so that the lesionsalmost deserve the name of plasmomata or plasmocytomata.^JMie sections seem distinctly to show transitional forms betweenplasma-cells and fibroblasts—that is to say, cells resembling plasma-cells are in some parts of the sections apparently becoming elongatedand arranged in strands, as if an attempt at the formation of scar-tissue was in progress. It is possible that in cases of chr
. The British journal of dermatology . hic haimorrhagic sarcoma cases as theyare in the present case, in which they (see Fig. 3), in some parts ofthe sections, form dense plasma-cell infiltrates, so that the lesionsalmost deserve the name of plasmomata or plasmocytomata.^JMie sections seem distinctly to show transitional forms betweenplasma-cells and fibroblasts—that is to say, cells resembling plasma-cells are in some parts of the sections apparently becoming elongatedand arranged in strands, as if an attempt at the formation of scar-tissue was in progress. It is possible that in cases of chronic Xanthoma tuberosum thelipoidal cells, termed xanthoma-cells, may be derived from plasma- * J. E. R. McDonagh, A Contril)ution to Our Knowledge of the Nacvo-Xantho-Endothelioniata, Brit. Journ. Derm., London, 1912. xxiv, pp. 85-99. t See F. Parkes Weber, Thiee Cases of So-called Multiple IdiopathicHsemorrhagic Sarcoma (Kaposi), ihid., 1916, xxviii, pp. 309-31(J. British Journal of Dermatology and Syphilis,] IVOL. XXIX, Nos- 7 -^32^^: ^ ^ X^O \ ^?~^^- Pa-ikes Webers case of Xanthoma tuberosum multiplex. To showthe appearance under low magnification (x 8) of one of the deeper nodulesIroin the left arm situated more in the subcutaneous tissue than in the of plasma-cell infiltrates are represented separately under hioh magni-fication (X 450), t ^ a .-, TO ILLUSTRATE DR. F. PARKES WEBERS ARTICLE ON A REMARKABLECASE OF XANTHOMA TUBEROSUM MULTIPLEX liOYAI. SOCMKTY OF MKDIOINK. 209 cells as well as from endothelial cells by infiltration with the choles-terin-like material which produces the granules or crystals in theircytoplasm. In regard, however, to the present case, it should benoted that the presence of lipoid granules or crystals in the cells wasnot demonstrated. For help in the examination of the case I am greatly indebted toDr. H. Schmidt. ROYAL SOCIETY OF MEDICINE. DERMATOLOGICAL SECTION. Meeting hold on May 17th, 1917, Dr. J. H. Stowers, President ofthe
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