Primary osteosarcoma of the urinary bladder following cyclophosphamide therapy for systemic lupus erythematosus: a case report
2009

Osteosarcoma of the Urinary Bladder in a Patient with Lupus

Sample size: 1 publication Evidence: low

Author Information

Author(s): Baydar Dilek Ertoy, Himmetoglu Cigdem, Yazici Sertac, Kiziloz Halil, Ozen Haluk

Primary Institution: Hacettepe University Hospital

Hypothesis

Is there a link between systemic lupus erythematosus and the development of osteosarcoma in the urinary bladder?

Conclusion

Long-term immunosuppressive therapy and systemic lupus erythematosus may contribute to the development of primary osteosarcoma in the urinary bladder.

Supporting Evidence

  • Only 30 cases of primary osteosarcoma of the urinary bladder have been reported in the literature.
  • The patient had a long history of systemic lupus erythematosus and was treated with immunosuppressive agents.
  • Malignant neoplasms occur more commonly in patients with systemic lupus erythematosus than in the general population.

Takeaway

A 24-year-old woman with lupus developed a rare type of cancer in her bladder after many years of treatment. This shows that some medicines for lupus might increase cancer risk.

Methodology

Case report detailing the patient's medical history, diagnosis, and treatment.

Potential Biases

Potential bias due to the unique nature of the case and lack of broader data.

Limitations

Only one case is reported, limiting generalizability.

Participant Demographics

24-year-old Caucasian woman with a 13-year history of systemic lupus erythematosus.

Digital Object Identifier (DOI)

10.1186/1752-1947-3-39

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