View source for Paroxysmal nocturnal haemoglobinuria

'''Paroxysmal nocturnal haemoglobinuria''' (PNH) has an unfortunate name. Its name implies that the main clinical feature is the presence of haemoglobin in the urine in the night, but this symptom isn’t present in everyone with PNH. Also, the name doesn’t explain the most important clinical features of the disease: [[Haemolysis]], [[venous thrombosis]], and [[pancytopaenia]]. It’s a rare disease.