Pyoderma Gangrenosum
Category of disorders Examples Gastrointestinal Ulcerative colitis, Crohn’s disease, collagenous colitis, gastritis, gastroduodenal ulcers, intestinal polyps Hematological Leukemia (myelogenous, hairy cell), myelofibrosis, myelodysplastic syndromes, paraproteinemia, Waldenstrom macroglobulinemia, paroxysmal nocturnal hemoglobinuria…