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Case report
Mycobacterium bovis prosthetic joint infection following intravesical instillation of BCG for bladder cancer
  1. Ashka Patel and
  2. Joel Elzweig
  1. Internal Medicine, Geisinger Medical Center, Danville, Pennsylvania, USA
  1. Correspondence to Dr Ashka Patel; ashkapatel{at}


A 91-year-old man with a history of intravesicular BCG therapy for recurrent bladder cancer and bilateral total hip arthroplasty (THA) presented with left hip pain. He was noted to have a fluid collection over the left lateral hip and hip X-ray showed loosening of the prosthetic hip stem indicative of a prosthetic joint infection (PJI). He subsequently underwent removal of the THA and insertion of an antibiotic spacer. He was discharged on intravenous ceftriaxone for presumed culture negative PJI. Intraoperative acid fast bacillus culture later grew Mycobacterium tuberculosis complex, which was then differentiated to M. bovis. The M. bovis infection was thought to be a complication of the patient’s prior BCG therapy. He was initially started on isoniazid, rifampin, pyrazinamide and ethambutol pending cultures and sensitivities; pyrazinamide was discontinued after M. bovis was isolated on culture and susceptibility data confirmed the expected inherent resistance of M. bovis to pyrazinamide. The patient underwent successful THA revision and remains symptom-free at 1 year.

  • infectious diseases
  • bone and joint infections
  • TB and other respiratory infections
  • orthopaedic and trauma surgery
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  • Contributors Substantial contribution to this work including drafting it and revising it was made by both authors, AP and JE. Both AP and JE were involved in the research, planning, drafting and submitting of this article. Final approval of the manuscript that has been submitted to publish was provided by both parties. Both authors have agreed to be accountable for all aspects of the work.

  • 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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