title: Primary gastric lymphoplasmacytoid malignant lymphoma (gastric plasmacytoma): an endoscopic cytologic diagnosis.
abstract: A case of primary gastric plasmacytoma in which diagnosis was made preoperatively by an endoscopic technique is presented. Exfoliative cytology using a brush under direct visual control enabled the case to be classified as lymphoplasmacytoid malignant lymphoma. Data which favor the diagnosis of plasmacytoma are: 1) plasma cells in various stages of maturation, 2) abnormal plasma cells often in mitotic division, 3) the presence of atypical immunoblasts.
mesh_terms: D000328:Adult; D002467:Cell Nucleus / Q000473:pathology; D002843:Chromatin / Q000473:pathology; D003581:Cytodiagnosis; D003593:Cytoplasm / Q000473:pathology; D005260:Female; D005773:Gastroscopy; D006801:Humans; D010950:Plasma Cells / Q000473:pathology; D010954:Plasmacytoma / Q000175:diagnosis* / Q000473:pathology; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology
chemical_list: D002843:Chromatin