Introduction:
CNS embryonal tumors are highly malignant undifferentiated or poorly
differentiated tumors of neuroepithelial origin, they take origin from
embryonic cells that remain in the brain after birth, These tumors tend
to spread through the cerebrospinal fluid (CSF) to other parts of the
brain and spinal cord.Central nervous system embryonal tumor, not
otherwise specified (NOS) was previously called primitive
neuroectodermal tumors (PNET), these are rare tumors that form in the
brain and spinal cord. (1)
We describe CNS (NOS) that arose in the occipital lobe of a 27 year old
patient.