Late renal allograft failure secondary to thrombotic microangiopathy associated with disseminated malignancy.

A renal transplant recipient with a remote history of end-stage renal disease due to postpartum hemolytic-uremic syndrome (HUS) presented with acute renal failure after having stable renal allograft function for 9 years. A diagnosis of thrombotic microangiopathy was made based on clinical and histologic findings at renal biopsy. She was treated conservatively, never regaining graft function and ultimately succumbing from her overwhelming tumor load approximately 6 months following diagnosis of her malignancy. To our knowledge, this is the first report of thrombotic microangiopathy associated with disseminated malignancy resulting in renal allograft failure.