Primitiver neuroektodermaler Tumor

Extra osseus

Ewings sarcoma / PNET with sacral and sciatic nerve involvement.. A T1 isointense lobulated mass lesion in the presacral space extending through the left greater sciatic foramen into the gluteal region.

Peripheral

primitive neuroectodermal tumour (PNET) of the vulva. T2WI demonstrated a mass in the vulva with oval morphology and smooth margins. To better clarify the tumour origin we used endovaginal contrast. The mass was located between the urethra and the vagina.