Question: is pnh a form of cancer?
Answer: Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired, disease that is caused by a mutation in bone marrow stem cells. The disease is characterized by destruction of red blood cells (hemolytic anemia), blood clots (thrombosis), impaired bone marrow function, and a 3% to 5% lifetime risk of developing leukemia.