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Case Reports
. 1991 Oct 15;68(8):1754-7.
doi: 10.1002/1097-0142(19911015)68:8<1754::aid-cncr2820680818>3.0.co;2-e.

Primary pulmonary adenocarcinoma with enteric differentiation

M S Tsao  1 , R S Fraser
Affiliations
Case Reports

Primary pulmonary adenocarcinoma with enteric differentiation

M S Tsao et al. Cancer. .

Abstract

A pulmonary neoplasm with cytologic characteristics typical of differentiated small intestinal epithelium is reported. Individual cells showed features suggesting columnar absorptive, goblet, Paneth, and neuroendocrine cell differentiation. Thorough investigation and follow-up for 4 years did not identify a primary tumor other than in the lung. The occurrence of such a neoplasm at this site is evidence for the existence of a common stem cell in the lower respiratory and gastrointestinal tract mucosa.

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