Primitive mediastinal neuroectodermal tumor with cervical extension: a case report

Primitive neuroectodermal tumors (PNET) are rare lesions belonging to the Ewing's family of tumors. The major histological features are the presence of small, round cells and different degrees of neuroectodermal differentiation. In most cases, the radiological findings are nonspecific, and diagnosis requires the performance of electron microscopy and immunohistochemical studies. We present a case of PNET in a 29-year-old man with no personal medical history of interest, and review the literature on tumors of this type, which focuses very little on the radiological aspects. (Author) 12 refs