Abstract: To investigate the genesis, clinical characteristics, diagnosis and treatment progress of cervical primitive neuroectodermal tumor (PNET), also called Ewing sarcoma, improve the understandings of this special type of cervical malignancies. A case of cervical PNET, at the Second Hospital of Jilin University in January 2016, was analyzed retrospectively. The tumor was found accidently in a routine examination with no clinical manifestations. The patient was finally confirmed by surgical pathologic examination and immunohistochemical staining. Immunohistochemistry was positive for CD99 and vimentin. Cervix PNET is a extremely rare and aggressively invasive tumor with high malignancy and mortality. The diagnosis depends on pathology, immunohistology and cytogenetics and there is no consensus on treatment so far.

Key words: Cervical neoplasm, primitive neuroectodermal tumor, Ewing sarcoma, clinical characteristics, diagnosis, treatment