MEN1 and primitive neuroectodermal tumor: Several years later, the first case proposing a link between MEN1 and ependymoma was published: a 51-year-old man who presented with gait disturbance and hypoesthesia was found to have a benign spinal ependymoma and was ultimately diagnosed with clinical MEN1 (PHPT, PNET, and pituitary microadenoma) (127).