Schwartz-Bartter's syndrome and mesencephalic astrocytoma.

A case of an astrocytoma arising in the mesencephalon is reported. The patient was first treated at the age of 11 years. He led a normal life for almost 20 years and survived for 25 years in spite of a recurrence 14 years after the initial operation. The last couple of years he developed various neurological disorders and a Schwartz-Bartter's syndrome. The clinical picture is explained by the growth of the tumor along the neuraxis to the hypothalamus.