Paroxysmal nocturnal haemoglobinuria with renal, infective and immunological abnormalities.

An elderly woman presented with paroxysmal nocturnal haemoglobinuria complicated by renal failure which was almost completely reversible. The illness was further complicated by a transient cerebral ischaemic attack and a chest infection with septicaemia due to Pseudomonas aeruginosa from which she died.