A case of severe ethylene-glycol intoxication is presented in which there were potentially fatal plasma levels, neurological manifestations and acute renal failure and which was treated with ethanol and hemodialysis. Crystal deposits, normal glomeruli and severe tubular affectation suggestive of direct cytotoxic action, were found in renal biopsy, which was performed during the anuric phase. The evolution was favorable with no neurologic sequelae, diuresis re-onset on day 17 and return of normal renal function.