[Inappropriate antidiuretic hormone secretion in T-cell non-Hodgkin's lymphoma]

A 45-year-old woman was hospitalized for an acute confusional state which was preceded by behavioral changes of a few weeks duration. The diagnosis of the syndrome of inappropriate antidiuretic hormone secretion as a presenting symptom of non-Hodgkin's T-cell lymphoma (needle biopsy) was made. In spite of intensive chemotherapy, and although hyponatremia did not recur, the clinical course was stormy, her condition deteriorated rapidly, and she died 3 months later.