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Primary gastric plasmacytoma with massive intracytoplasmic crystalline inclusions a case report
Author(s) -
FerrerRoca O.
Publication year - 1982
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19820815)50:4<755::aid-cncr2820500422>3.0.co;2-6
Subject(s) - endoplasmic reticulum , plasmacytoma , medicine , pathology , electron microscope , cytoplasm , stomach , ultrastructure , anatomy , microbiology and biotechnology , biology , optics , multiple myeloma , physics
The case of a 75‐year‐old man with an extramedullary plasmacytoma of the stomach with peculiar histologic aspect is summarized. The cytoplasm of the proliferated cells was full of needle‐shaped crystalline inclusions that made it difficult to recognize the plasma‐cell nature. Under electron microscope, the crystalline inclusions were localized in the rough endoplasmic reticulum. They have a two internal line system of 75‐85 Å of period in a 45 ° angle with the main edge. The laser‐ray analysis demonstrates that these two systems delineate hexagonal areas.