Mondo Description Paroxysmal nocturnal hemoglobinuria (PNH) is an acquired clonal hematopoietic stem cell disorder characterized by corpuscular hemolytic anemia, bone marrow failure and frequent thrombotic events.

Disease Ontology Description An aquired hemolytic anemia that is characterized by abdominal pain, hematuria, esophageal dysmotility and thrombosis, has_material_basis_in defect in the cell membrane glycosyl phosphatidylinositols that protect red blood cells from the innate complement immune system.