Askin's tumor

Askin's tumor is a rare, primitive neuroectodermal tumor which arises from the soft tissues of the chest wall, particularly of the paravertebral region.^[1][2] It was first described by Askin et al. in 1979.^[3] Askin's tumor is now recognized as part of the Ewing's sarcoma family of tumors.^[4] This neoplasm tended to recur locally, but did not seem to disseminate as widely as some of the other small cell tumors of childhood such as rhabdomyosarcoma or neuroblastoma.