title: The solitary pulmonary nodule: not always bronchogenic carcinoma.
abstract: A solitary lung nodule (SLN) is seen in 1 in 500 chest radiographs. Benign causes include infectious granulomas and hamartomas, and less commonly, rheumatoid nodules, intrapulmonary lymph nodes and sarcoidosis. Bronchogenic carcinoma and solitary pulmonary metastases are found in 35% and 23% of SLN's respectively. Primary pulmonary non-Hodgkins lymphoma is a rare disease, constituting 0.4% of all lymphomas. We present a case of primary pulmonary non-Hodgkins lymphoma which presented as a SLN in an 87-year old lady with a smoking history of 50 pack years.
authors.affiliation: Department of Pulmonary and Critical Care Medicine, Thomas Jefferson University, 1015 Chestnut Street, Suite M-100, Philadelphia, PA 19107, USA. Bobbak.vahid@mail.tju.edu
authors.forename: Bobbak
authors.initials: B
authors.lastname: Vahid
authors.forename: Frank T
authors.initials: FT
authors.lastname: Leone
mesh_terms: D000369:Aged, 80 and over; D002283:Carcinoma, Bronchogenic / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications* / Q000175:diagnosis; D016393:Lymphoma, B-Cell / Q000150:complications* / Q000175:diagnosis; D008228:Lymphoma, Non-Hodgkin / Q000150:complications* / Q000175:diagnosis; D003074:Solitary Pulmonary Nodule / Q000209:etiology*