Pulmonary endodermal tumor resembling fetal lung: low grade adenocarcinomaof fetal lung type

Pulmonary endodermal tumor resembling fetal lung is a rare pulmonary neopla sm, classified either within the pulmonary blastomas spectrum or as a subty pe of adenocarcinoma. We report a case revealed by a fever in a 24-year-old woman. The tumor measured 9 cm and extended into the lower right bronchus. The diagnosis was done on a biopsy performed during fiberoptic endoscopy. The patient was created by lobectomy. She is well without disease 6 years a fter surgery. This type of predominantly epithelial tumor with neuroendocri ne differenciation and a scanty non malignant stromal component should be i dentified in young women because of its favorable outcome after surgical re section. It must not be confused with ordinary adenocarcinoma nor metastati c adenocarcinoma, especially endometrioid type.