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Case report
Rare infection in patient with rheumatoid arthritis treated with adalimumab
  1. Navina Kapur,
  2. Ritu Ghai,
  3. Joel A Block and
  4. Sonali Khandelwal
  1. Internal Medicine, Rush University, Chicago, Illinois, USA
  1. Correspondence to Dr Navina Kapur; navina_c_kapur{at}


Mycobacterium haemophilum is a rare pathogen, predominately present in the immunocompromised population. It is especially studied in HIV and haematological malignancy patients. Given its unique living conditions, it is often difficult to establish its diagnosis, but it is often suspected by its classic association with ulcerating skin findings. Our case is unique in that our patient is immunocompromised by his rheumatoid arthritis treatment, and presented without any skin lesions, but was found to have this rare pathogen causing a constellation of unusual symptoms.

  • infections
  • malignant disease and immunosuppression
  • rheumatoid arthritis
  • rheumatology
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  • Contributors NK: completed literature review, reviewed and revised the case report. RG: completed pathology analysis and wrote pathology analysis. JAB: reviewed and revised report. SK: reviewed and revised report.

  • 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.

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