Primary intracranial germ cell tumour originating from right brachium Pontis with hypertrophic Olivary degeneration: a case report.

A case of "Primary right brachium pontis germinoma with HOD" is reported for the first time. A preoperative diagnosis is challenging due to the fact of absence of clinical signs and symptoms and neuroimaging characteristics. However, patients can have favourable prognoses with appropriate evaluation and treatment.