The association of cerebellar ataxia and non-neurological syndromes is a well known
phenomenon. A 20-year-old male patient presented with a longstanding and non-
progressive ataxia. Magnetic resonance examination revealed marked inferior vermian-
cerebellar hypoplasia. He also showed a hypogonadism with low serum gonadotropin and
prolactin levels. Chronic pulsatile gonadotropin-releasing hormone (GnRH) administration
resulted in a small non-pulsatile luteinizing hormone (LH) increase and no follicle …