PMID: 18723952Aug 30, 2008Paper

Spectrum of pulmonary adenocarcinoma with ultrastructural correlation: an autopsy study from northern India

Indian Journal of Pathology & Microbiology
Kirti GuptaCharan Singh Rayat

Abstract

In the present study, we have evaluated the use of electron microscopy in subtyping pulmonary adenocarcinomas, comparing the ultrastructural findings with the diagnosis rendered by light microscopy. The gross and histologic features of 16 autopsy cases of pulmonary adenocarcinoma were analyzed and compared with electron microscopic features. The cytologic phenotypes of these cases of well-differentiated pulmonary adenocarcinoma were determined by electron microscopic examination. More than 200 cells in each case were examined, and the tumors were classified according to the predominant feature noted. Eight cases were of Clara cell origin and one case each of type II pneumocyte and bronchial surface cell type. The remaining 6 cases lacked definite discernible features of differentiation towards any specific cell type, other than presence of small nuclear clefts in occasional nuclei. Tumors with Clara cell differentiation were low cuboidal with apical snouts. Type II pneumocyte tumor failed to reveal any characteristic definable as light microscopic feature. Ultrastructural examination is the only definite means of identification of various cell types in the respiratory epithelium and hence forms an invaluable tool in classificat...Continue Reading

Citations

Nov 12, 2013·American Journal of Physiology. Lung Cellular and Molecular Physiology·Sandra K GilleyP Darwin Bell

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