A 22-Year-Old Man With Headache, Facial Numbness, Diplopia and Left Leg Numbness.

We present a 22-year-old male with a subacute course of chin numbness, ophthalmoplegia, headache and left leg numbness in the setting of fever, chills and night sweats. Initial imaging investigations revealed cauda equina enhancement plus an infiltrative process at the basis of the skull associated with extensive bone marrow infiltration and lymphadenopathy elsewhere. We discuss the localization, differential diagnosis, and appropriate investigations for this unique clinical scenario. Important laboratory findings and treatment considerations are reviewed for this unusual final diagnosis.