title: Extramedullary plasmacytoma of the orbit: case report with results of immunocytochemical studies.
abstract: Orbital involvement as the initial manifestation of primary extramedullary plasmacytoma is rare. The case presented in this article illustrates several interesting aspects of the disease. The neoplastic process involved monoclonal B-lymphocytes that produced IgG-lambda chains.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications* / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000150:complications* / Q000473:pathology; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis; D009918:Orbital Neoplasms / Q000150:complications* / Q000473:pathology; D010954:Plasmacytoma / Q000150:complications* / Q000473:pathology; D012535:Scalp / Q000473:pathology; D012878:Skin Neoplasms / Q000150:complications* / Q000473:pathology