Primary pulmonary enteric adenocarcinoma

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Primary pulmonary enteric adenocarcinoma
Pulmonary enteric adenocarcinoma
Pulmonary adenocarcinoma with intestinal differentiation
Primary pulmonary enteric adenocarcinomas
Enteric adenocarcinoma of lungs
Enteric adenocarcinoma of lung
Pulmonary adenocarcinoma with enteric differentiation (PAED)
Pulmonary enteric adenocarcinoma (PEAC)
Enteric adenocarcinoma of the lungs
Enteric adenocarcinoma of the lung

Pulmonary enteric adenocarcinoma (PEAC) or pulmonary adenocarcinoma with enteric differentiation (PAED) is an extremely rare variant of primary invasive adenocarcinoma of the lung. It has morphological and immunohistochemical profiles overlapping with that of colorectal carcinoma. Due to this, it is difficult to diagnose and requires a definite exclusion of a colonic primary.

Terminology

It is usually defined as a primary pulmonary adenocarcinoma where the enteric component exceeds 50% and with an expression of at least 1 immunohistochemical marker of enteric differentiation.