title: Hodgkin's lymphoma presenting with markedly elevated IgE: a case report.
abstract: BACKGROUND
  Markedly elevated IgE as a manifestation of a lymphoproliferative disorder has been only rarely reported.
  
  
  METHODS
  We present the case of a 22 year old female referred to the adult Allergy & Clinical Immunology clinic for an extremely elevated IgE level, eventually diagnosed with Hodgkin's lymphoma. She had no history of atopy, recurrent infections, eczema or periodontal disease; stool was negative for ova & parasites. Chest X-ray revealed large bilateral anterior mediastinal masses that demonstrated prominent uptake on gallium scan. Mediastinal lymph node biopsy was consistent with Hodgkin's lymphoma, nodular sclerosing subtype, grade I/II.
  
  
  CONCLUSIONS
  Although uncommon, markedly elevated IgE may be a manifestation of a malignant process, most notably both Hodgkin's and Non-Hodgkin's lymphomas. This diagnosis should be considered in evaluating an otherwise unexplained elevation of IgE.
authors.affiliation: Division of Clinical Immunology & Allergy, Department of Medicine, McMaster University, Hamilton, ON, Canada. ellis.anne@gmail.com
authors.forename: Anne K
authors.initials: AK
authors.lastname: Ellis
authors.forename: Susan
authors.initials: S
authors.lastname: Waserman