plasmacytoma Path.
(plæzməsaɪˈtəʊmə)
Also plasmo-. Pl. -omas, -omata.
[mod.L., ad. G. plasmocytom (H. Boit 1907, in Frankfurter Zeitschr. f. Path. I. 172): see prec. and -oma.]
A myeloma composed largely of plasma cells.
| 1907 Index Medicus V. Index 173/1 Plasmocytoma. 1931 Amer. Jrnl. Med. Sci. CLXXXI. 171 There appear in the literature cases of both extra-osseous and intra-osseous plasmocytomata. Ibid. 178 There is no very sharp line of demarcation between localized, benign plasmocytomata on the one hand, and the malignant, fatal multiple myelomata on the other. 1940 Acta Med. Scand. CIII. 569 There is no increase of globulin in a number of plasmocytoma cases. 1961 [see myelomatosis]. 1972 [see multiple a. and n. A. 3 d]. 1973 Jrnl. Bone & Joint Surg. A. LV. 1749 Most solitary plasmocytomas eventually become classic multiple myelomas if they are followed long enough. 1976 Lancet 6 Nov. 1003/2 Bone-resorbing factors have also been identified in cultured human tumour cells, including those from plasmacytomas. |