Felis ISSN 2398-2950

Bladder: neoplasia

Contributor(s): William Brewer Jr, Irene Rochlitz

Introduction

  • Very rare <1% of all neoplasms (80% malignant). Most common tumor type: transitional cell carcinoma.
  • Signs: hematuria Hematuria, stranguria, pollakiuria are common presenting signs. Chronic urinary tract infection (UTI) Cystitis: bacterial in 65-75% cases. Tumors location vary greatly inside the bladder. 
  • Treatment: surgical and additional chemotherapy/radiotherapy.
  • Prognosis: poor due to early local recurrence, metastasis or surgical difficulty (only partial resection often possible).

Pathogenesis

Etiology

  • Unknown. Probably multifactorial.
  • Role of previous diagnosis of feline idiopathic cystitis   Idiopathic cystitis  ?

Timecourse

  • Weeks to months (most animals with malignant bladder tumors dead within 1 year).

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Bommer N X, Hayes A M, Scase T J et al (2012) Clinical features, survival times and COX-1 and COX-2 expression in cats with transitional cell carinoma of the urinary bladder treated with meloxicam. J Feline Med Surg 14 (8), 527-533 PubMed.
  • Wilson H M, Chun R, Larson V S et al (2007) Clinical signs, treatments, and outcomes in cats with transitional cell carcinoma of the urinary bladder: 20 cases (1990-2004). JAVMA 231 (1), 101-106 PubMed.
  • Benigni L, Lamb C R, Corzo-Menedez N et al (2006) Lymphoma affecting the urinary bladder in three dogs and a cat. Vet Radiol Ultrasound 47 (6), 592-596 PubMed.
  • Barrand K R (1999) Rectal prolapse associated with urinary bladder neoplasia in a cat. JSAP 40 (5), 222-223 PubMed.
  • Patnaik A K, Schwarz P D & Greene R W (1986) A histopathological study of 20 urinary bladder neoplasms in the cat. JSAP 27 (7), 433-45 Wiley Online Library.
  • Schwarz P D, Greene R W & Patnaik A K (1985) Urinary bladder tumours in the cat: a review of 27 cases. JAAHA 21 (2), 237-45 VetMedResource.


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