title: Cigarette smoking-related persistent polyclonal B lymphocytosis. A premalignant state.
abstract: A case of cigarette smoking-related polyclonal B lymphocytosis, with binucleated cells, was observed. The condition was persistent for two years. We indicated the abnormal ultrastructural features and suggest that this unexplained syndrome could be a premalignant state.
mesh_terms: D000328:Adult; D001402:B-Lymphocytes / Q000473:pathology*; D005260:Female; D006801:Humans; D008218:Lymphocytosis / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D011230:Precancerous Conditions / Q000209:etiology* / Q000473:pathology; D012907:Smoking / Q000009:adverse effects*