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Appendiceal carcinoma invading the urinary bladder.

C Arisawa1, S Takeuchi, M Wakui

  • 1Department of Urology, Toride Kyodo General Hospital, Ibaraki, Japan. c-ariisawa.uro@med.tmd.ac.jp

International Journal of Urology : Official Journal of the Japanese Urological Association
|March 22, 2001
PubMed
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Appendiceal carcinoma invading the bladder is rare. This case highlights the importance of surgical pathology in diagnosing primary appendiceal mucinous cystadenocarcinoma presenting as a secondary bladder tumor.

Area of Science:

  • Oncology
  • Urology
  • Gastroenterology

Background:

  • Appendiceal carcinoma is a rare malignancy.
  • Bladder invasion by appendiceal tumors is exceptionally uncommon.
  • Diagnosis can be challenging due to non-specific symptoms and inconclusive initial biopsies.

Observation:

  • A 78-year-old woman presented with irritative bladder symptoms.
  • Imaging suggested a secondary bladder tumor of appendiceal origin, but biopsies were inconclusive.
  • Laparotomy and frozen section pathology confirmed appendiceal mucinous cystadenocarcinoma invading the bladder.

Findings:

  • Histologic examination revealed mucinous cystadenocarcinoma originating from the appendix.
  • The patient underwent successful right hemicolectomy and en bloc partial cystectomy.

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  • No evidence of recurrent cancer was observed one year post-surgery.

    • Implications:

    • This case underscores the diagnostic utility of surgical pathology for rare appendiceal malignancies.
    • Definitive surgical management can lead to favorable outcomes in advanced appendiceal carcinoma with bladder invasion.
    • Highlights the need for a high index of suspicion for unusual presentations of appendiceal cancer.