Primary pulmonary enteric adenocarcinoma (P-PEAC) is an unusual subtype of invasive lung adenocarcinoma.
The significance of such tumor lies in its similar histopathological and immunohistochemical characteristics to
colorectal adenocarcinoma. Therefore, a detailed investigation is crucial to establish a definitive diagnosis. This
paper reports a case of a 51-year-old Saudi female, diagnosed with a rare variant of lung carcinoma, P-PEAC.
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