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Case report
Urine antigen-negative disseminated histoplasmosis mimicking post-transplant lymphoproliferative disorder
  1. Surbhi Gupta,
  2. Colin Andrew Hinkamp and
  3. Matthew Lo
  1. Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
  1. Correspondence to Dr Surbhi Gupta; surbhi.gupta{at}


A 50-year-old woman with a history of kidney transplant presented with 2 days of abdominal pain after 6 months of recurrent streptococcal pharyngitis, fevers, weight loss and a new rash on her chest and back. Her examination was notable for a unilateral tonsillar exudate and 2–3 mm pink papules with a fine scale over her chest and back. CT of the abdomen and chest demonstrated several large lymph nodes, and laboratory investigation revealed new cytopenias and elevated transaminases. Urine antigen testing for Histoplasma capsulatum was negative, but a fungal complement fixation panel was reactive for Histoplasma antibodies. Skin biopsy revealed intracellular organisms consistent with H. capsulatum. She underwent treatment with liposomal amphotericin B but due to nephrotoxicity, drug interactions and worsening transaminitis, therapy was changed to itraconazole. The diagnosis and management of disseminated histoplasmosis presents multiple challenges, which are of particular importance in patients with a history of renal transplantation.

  • dermatology
  • malignant disease and immunosuppression
  • drugs: infectious diseases
  • infectious diseases
  • unwanted effects / adverse reactions

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  • Contributors SG contributed to the acquisition, analysis and interpretation of data, drafting and revising of the manuscript. CAH contributed to the acquisition, analysis and interpretation of data, drafting and revising of the manuscript. ML contributed to the analysis and interpretation of data and revising of the manuscript. All authors agreed to the final version of the manuscript and agreed to be accountable for the article.

  • 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 Obtained.

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