title: Primary pulmonary non-Hodgkin's lymphomas.
abstract: We report a retrospective study of the pathological features in 69 primary pulmonary non-Hodgkin's lymphomas which have previously been clinically reviewed. The tumours consisted of 61 (88%) low-grade and eight (12%) high-grade malignant lymphomas. Fifty-four of the low-grade malignant lymphomas were MALT lymphomas. Lymphoepithelial lesions were observed in bronchial, bronchiolar and alveolar lining. All tumours were composed of nodules, forming a lymphangitic pattern at the periphery and a confluent central mass. Invasion of pleura and vessels was often seen but this without any consequence on survival. Granulomas were found in 20% of cases. Six of the eight high-grade tumours were centroblastic and another two were B-cell lymphomas of undetermined type. In four cases, associated areas of low-grade malignant lymphoma with lympho-epithelial lesions indicated a preexisting MALT lymphoma. Clinical data suggest that limited surgery or non-aggressive chemotherapy can provide long-term survival in patients with such slowly developing neoplasms. However, non-invasive diagnostic methods need to be developed.
authors.affiliation: Department of Pathology, University Hospital of Nantes, France.
authors.forename: M
authors.initials: M
authors.lastname: Fiche
authors.forename: F
authors.initials: F
authors.lastname: Caprons
authors.forename: F
authors.initials: F
authors.lastname: Berger
authors.forename: F
authors.initials: F
authors.lastname: Galateau
authors.forename: J F
authors.initials: JF
authors.lastname: Cordier
authors.forename: R
authors.initials: R
authors.lastname: Loire
authors.forename: J
authors.initials: J
authors.lastname: Diebold
mesh_terms: D000328:Adult; D000368:Aged; D000912:Antibodies, Neoplasm; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000401:mortality / Q000473:pathology* / Q000628:therapy; D016393:Lymphoma, B-Cell / Q000473:pathology; D018442:Lymphoma, B-Cell, Marginal Zone / Q000401:mortality / Q000473:pathology* / Q000628:therapy; D008228:Lymphoma, Non-Hodgkin / Q000401:mortality / Q000473:pathology* / Q000628:therapy; D016399:Lymphoma, T-Cell / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015996:Survival Rate
chemical_list: D000912:Antibodies, Neoplasm