title: Acquired Glanzmann's thrombasthenia associated with Hodgkin's lymphoma: a case report and review of the literature.
abstract: BACKGROUND
  Acquired Glanzmann's thrombasthenia is a rare hemorrhagic diathesis resulting from impaired adhesive function of the platelet receptor GPIIb/IIIa (alpha(IIb)beta3). Typically, this disorder develops during adulthood, with patients manifesting fluctuating clinical and laboratory findings. To date, the underlying defect of most if not all cases of acquired Glanzmann's thrombasthenia results from an autoantibody or plasma protein inhibitor directed toward a demonstrably normal GPIIb/IIIa glycoprotein.
  
  
  METHODS
  In this report, a patient with a history of treated Hodgkin's lymphoma presented with a severe hemorrhagic diathesis characterized by mild thrombocytopenia, a prolonged bleeding time, and defective platelet aggregation.
  
  
  RESULTS
  Examination of the patient's platelet GPIIb/IIIa by Western blot analysis revealed no abnormality. Mixing studies demonstrated a non-immunoglobulin G plasma inhibitory factor, whereas flow cytometry analysis revealed elevated platelet-associated immunoglobulin (Ig) M. After an emergency colectomy for severe hemorrhage, the patient's qualitative and quantitative platelet parameters significantly improved. Pathology of the resected colonic segment demonstrated atypical lymphoid hyperplastic lesions.
  
  
  CONCLUSIONS
  To the authors' knowledge, this is the first reported case of acquired Glanzmann's thrombasthenia associated with a putative IgM autoantibody. Furthermore, this report verifies the association of acquired thrombasthenia with lymphoproliferative disease. Although rare, awareness of this hemorrhagic diathesis as a possible sequelae of active or treated lymphoid disorders should encourage clinical vigilance of these patients.
authors.affiliation: Department of Oncology, Montefiore Medical Center Hospital and the Albert Einstein Cancer Center, Bronx, New York 10467, USA.
authors.forename: U
authors.initials: U
authors.lastname: Malik
authors.forename: J P
authors.initials: JP
authors.lastname: Dutcher
authors.forename: L
authors.initials: L
authors.lastname: Oleksowicz
mesh_terms: D000912:Antibodies, Neoplasm / Q000276:immunology; D001323:Autoantibodies / Q000276:immunology; D001792:Blood Platelets / Q000502:physiology; D005260:Female; D006689:Hodgkin Disease / Q000097:blood / Q000150:complications*; D006801:Humans; D007075:Immunoglobulin M / Q000276:immunology; D008875:Middle Aged; D013915:Thrombasthenia / Q000097:blood / Q000209:etiology*
chemical_list: D000912:Antibodies, Neoplasm; D001323:Autoantibodies; D007075:Immunoglobulin M