Case 34: X-Ray Chest + CT

Young boy with non resolving consolidation

Solid enhancing mass lesion extending to pleural margin seen in the right upper lobe.

Diagnosis:

PNET (Askins Tumor)

Discussion

Peripheral primitive neuroectodermal tumors (pPNETs) are also classified as part of the Ewing family of tumors (EFTs)

Ewing sarcoma, however, is more common in bone, while peripheral primitive neuroectodermal tumors (pPNETs) are more common in soft tissues.