Primary pulmonary enteric adenocarcinoma in a young adult: a diagnostic and therapeutic challenge.

Primary pulmonary enteric adenocarcinoma (PEAC) is a rare subtype of lung adenocarcinoma that resembles metastatic colorectal carcinoma in terms of morphology and immunophenotype. We describe a non-smoking female in her 30s who was referred for complaints of progressive low back pain, weight loss and fatigue. PET-CT revealed a 5.