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Case report
Follicular lymphoma presenting as hyperleucocytosis
  1. Heidi A Worth1,
  2. Katherine Cochrane2 and
  3. David Aljadir2
  1. 1Department of Medicine, University of Tennessee Knoxville, Knoxville, Tennessee, USA
  2. 2Department of Pathology, University of Tennessee Knoxville, Knoxville, Tennessee, USA
  1. Correspondence to Dr Heidi A Worth; hworth{at}utmck.edu

Abstract

Follicular lymphoma is the second most common subtype of non-Hodgkin's lymphoma affecting adults. Clinically, follicular lymphoma is generally indolent, most often presenting as a painless peripheral lymphadenopathy; however, a leucocytosis at presentation is exceedingly rare. We present the case of a 63-year-old woman with follicular lymphoma with a presenting hyperleucocytosis at diagnosis of 1 327 000/μL demonstrated on laboratory analysis work while hospitalised for progressive weakness. fluorescence in situ hybridization (FISH) panel was consistent with follicular lymphoma, which was positive for B-cell leukaemia/lymphoma 2 and negative for MYC Proto-Oncogene. Cytoreduction with rituximab-containing therapy was initiated, with the patient ultimately expiring. A leukaemic phase at presentation appears to be associated with poor outcome. The findings from our case, in addition to others, have potential implications in regard to prognostic utility. The current prognostic tool used to estimate overall survival for follicular lymphoma, Follicular Lymphoma International Prognostic Index, does not take leucocytosis into account.

  • haematology (drugs and medicines)
  • malignant disease and immunosuppression
  • oncology
  • chemotherapy
  • haematology (incl blood transfusion)
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Footnotes

  • Contributors HAW, KC and DA collected the data and wrote the case report. KC provided images. All authors reviewed the final manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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