Abstract :
Primitive Neuroectodermal Tumors (PNET) and Ewing Sarcoma (EWS) belong to the same family of malignant, small, round cell neoplasms of soft tissue or bone origin. Common locations for EWS-PNET include chest wall, pelvis, and extremities. EWSPNETs that arise in the lung parenchyma without chest wall involvement are extremely rare in adults. We report a case of EWS-PNET of the lung in an adult and review the distinct clinical, pathological, and molecular features of these tumors.
Keyword :
Primitive Neuroectodermal tumor, Lung cancer, Adult