"Atypical adenomatous hyperplasia (AAH) of the lung is a putative precursor lesion of adenocarcinoma of the lung. This entity replaces part of a spectrum of the former bronchoalveolar carcinoma (BAC) and falls under the spectrum of pre-invasive lesions of the lungs."
"Their radiographic appearances can be somewhat variable but have been commonly described as ground-glass nodules (usually pure ground glass) measuring less than 5 mm 3-5, opposed to adenocarcinomas in situ, which are also pre-invasive lesions, that tend to be larger."
"Atypical adenomatous hyperplasia lesions are represented by localised small cell proliferation, usually measuring ≤0.5 cm ("
"Radiographic features "
Expected headings
"Radiographic features "
"Atypical adenomatous hyperplasia lesions are represented by localised small cell proliferation, usually measuring ≤0.5 cm ("