Nodule in one lobe of the lung, multiple lesions in another lobe. The multiple
lesions are similar in structure and cell morphology as is the large adenoma
in the other lobe. Two lesions are growing into bronchiolar lumens. Papillary
adenoma is well circumscribed and composed of papillary structures.
Papillary structures are lined by a single layer of well differentiated
tumor cells with moderate amount of eosinophilic cytoplasm.
Clark, J. C., Tichelaar, J. W.,
Wert, S. E., Itoh, N., Perl, A. K., Stahlman, M. T., and Whitsett,
J. A. (2001). FGF-10 disrupts lung morphogenesis and causes pulmonary
adenomas in vivo. Am J Physiol Lung Cell Mol Physiol 280, L705-715.