title: Basaloid carcinoma of the lung with bronchiolo-alveolar cell differentiation. A case report.
abstract: OBJECTIVE
  We report a case of pulmonary basaloid carcinoma with bronchiolo-alveolar cell differentiation.
  
  
  RESULTS
  A 75 year-old presented with a tumor measured 2.0 cm and was located in the periphery of the left upper lobe. Histologically, the lesion consisted of nests of basaloid cells, and lumina and clefts lined by tumor cells with features of mucous cells or type II pneumocytes or with mixed features.
  
  
  CONCLUSIONS
  Previously reported basaloid carcinomas of the upper aero-digestive tract and lung have been purported to have an aggressive behavior. The tumor in the present study had features of a histopathological low grade tumor including a low mitotic rate, no tumor necrosis and a growth pattern at the periphery similar to that of bronchiolo-alveolar carcinoma.
authors.affiliation: Department of Laboratory Medicine, Ottawa Civic Hospital, University of Ottawa, Ontario, Canada.
authors.forename: K T
authors.initials: KT
authors.lastname: Mai
authors.forename: D G
authors.initials: DG
authors.lastname: Perkins
authors.forename: J P
authors.initials: JP
authors.lastname: Veinot
authors.forename: F M
authors.initials: FM
authors.lastname: Shamji
mesh_terms: D000368:Aged; D001980:Bronchi / Q000473:pathology*; D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D002454:Cell Differentiation; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D011650:Pulmonary Alveoli / Q000473:pathology*