[A case of inflammatory myofibroblastic tumor of the bladder]

Tetsuya Hayashi1, Toyofumi Abe, Jiro Nakayama

  • 1Department of Urology, Sumitomo Hospital.

Insights

This report details a rare inflammatory myofibroblastic tumor of the bladder in a 72-year-old man. Preoperative diagnosis was urachal tumor, confirmed as inflammatory myofibroblastic tumor post-surgery.

Area of Science:

  • Urology
  • Oncology
  • Pathology

Background:

  • Inflammatory myofibroblastic tumor (IMT) is a rare neoplastic proliferation.
  • Bladder IMT is uncommon, with limited reported cases, particularly in Japan.

Observation:

  • A 72-year-old male presented with symptoms suggestive of a urachal tumor.
  • Diagnostic workup included urine cytology, cystoscopy, and magnetic resonance imaging.
  • Surgical intervention involved a partial cystectomy.

Findings:

  • Histopathological examination confirmed the resected bladder tumor as an inflammatory myofibroblastic tumor.
  • This represents the 51st reported case of bladder IMT in Japan.
  • The patient experienced no local recurrence during a 13-month follow-up period.

Implications:

  • This case contributes to the understanding of rare bladder neoplasms.
  • Highlights the importance of comprehensive diagnostic evaluation for urachal and bladder masses.
  • Suggests favorable outcomes for surgically treated bladder IMT.

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