Lithium-induced membranous glomerulonephropathy in a pediatric patient.

Lithium-induced glomerular toxicity is an infrequent occurrence in pediatric patients. We report a 13-year-old patient presenting with clinical and laboratory evidence of renal insufficiency after long-term lithium use. Biopsy revealed membranous glomerulonephropathy. Discontinuation of the lithium treatment resulted in resolution of the symptoms and laboratory abnormalities. Other alkali metals have been implicated as risk factors for membranous glomerulonephropathy. To the best of our knowledge, this is the first reported case of lithium-induced glomerulonephropathy in a pediatric patient.