title: First two patients with ulcerative colitis who developed classical thrombotic thrombocytopenic purpura successfully treated with medical therapy and plasma exchange.
abstract: The association of ulcerative colitis (UC) and thrombotic thrombocytopenic purpura (TTP) is rare. Only one prior patient with these two syndromes has been reported in the literature. In that case, splenectomy and proctectomy were performed to control the symptoms of TTP. We present two patients with UC who developed TTP and were successfully treated with multiple plasma exchanges (PEXs) in conjunction with medical therapy without the necessity for surgical intervention. Acquired TTP may be another extraintestinal autoimmune feature of UC. TTP in association with UC may be refractory to high-dose steroids and PEX, possibly requiring vincristine and splenectomy, as in the one previously reported case, to achieve remission.
authors.affiliation: Department of Pathology, The University of Chicago, Chicago, Illinois, USA. bbaron@uchospitals.edu
authors.forename: Beverly W
authors.initials: BW
authors.lastname: Baron
authors.forename: Hye-Ran
authors.initials: HR
authors.lastname: Jeon
authors.forename: Catherine
authors.initials: C
authors.lastname: Glunz
authors.forename: Amy
authors.initials: A
authors.lastname: Peterson
authors.forename: Russell
authors.initials: R
authors.lastname: Cohen
authors.forename: Stephen
authors.initials: S
authors.lastname: Hanauer
authors.forename: David
authors.initials: D
authors.lastname: Rubin
authors.forename: John
authors.initials: J
authors.lastname: Hart
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Baron
mesh_terms: D000328:Adult; D001327:Autoimmune Diseases / Q000150:complications / Q000628:therapy; D003093:Colitis, Ulcerative / Q000150:complications* / Q000628:therapy; D005260:Female; D006801:Humans; D008875:Middle Aged; D010951:Plasma Exchange / Q000379:methods*; D011241:Prednisone / Q000627:therapeutic use; D011697:Purpura, Thrombotic Thrombocytopenic / Q000209:etiology* / Q000628:therapy*; D016896:Treatment Outcome
chemical_list: D011241:Prednisone