Alveolar adenoma of the lung: further characterization of this uncommon tumour.
Alveolar adenoma of the lung is a poorly characterized, uncommon pulmonary lesion with proliferation of alveolar epithelium and septal mesenchyme. We describe the electron microscopy, immunohistochemistry and DNA flow cytometry in a case of alveolar adenoma in a 55-year-old woman. Alveolar adenoma appears to be a distinct benign neoplasm of the alveolar structures. Our findings further suggest that it is not a precursor of bronchioloalveolar carcinoma or other type II pneumocyte lesions of presumed malignant potential.
Oliveira
P
P
Anatomic Pathology Laboratory, Instituto Portugues de Oncologia de Francisco Gentil, Lisboa, Portugal.
Moura Nunes
J F
JF
Clode
A L
AL
da Costa
J D
JD
Almeida
M O
MO
D000236:Adenoma / Q000378:metabolism / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000378:metabolism / Q000473:pathology*; D008854:Microscopy, Electron; D008875:Middle Aged; D011650:Pulmonary Alveoli