title: Parotid gland plasmacytoma with crystalline deposits.
abstract: A case of primary extramedullary plasmacytoma of the parotid gland with a marked deposition of intracytoplasmic crystals is presented. The immunohistochemical and ultrastructural characteristics of the crystals suggest formation from monoclonal immunoglobulin.
authors.affiliation: Department of Pathology, University of Texas M. D. Anderson Cancer Center, Houston.
authors.forename: A K
authors.initials: AK
authors.lastname: el-Naggar
authors.forename: N G
authors.initials: NG
authors.lastname: Ordonez
authors.forename: J G
authors.initials: JG
authors.lastname: Batsakis
mesh_terms: D000368:Aged; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D002479:Inclusion Bodies / Q000276:immunology / Q000648:ultrastructure; D008297:Male; D010307:Parotid Neoplasms / Q000276:immunology / Q000648:ultrastructure*; D010954:Plasmacytoma / Q000276:immunology / Q000648:ultrastructure*
chemical_list: D007074:Immunoglobulin G