Tuesday, March 9, 2010

Malignant tumor of urinary bladder

Malignant tumor of urinary bladder - Chronic

Definition  

Primary malignancy of the urinary bladder including transitional cell carcinomas (90%), squamous cell carcinomas (3% to 7%), and adenocarcinomas (2%)


 

Suspected and known bladder cancer  

* Endoscopy of bladder: Cystoscopy is indicated as part of the initial workup in suspected bladder cancer and for surveillance after treatment of known bladder cancer .


 

Complete Cystectomy  


 

Suspected and known bladder cancer  

* Urine cytology: Abnormal cytology results are suggestive of bladder cancer; definitive diagnosis requires histological examination of pathologic tissue .


 

Bladder cancer surveillance  

* Hepatic function panel

* Plasma creatinine measurement

* Blood electrolyte measurement

* Plain chest X-ray


 

B12 deficiency monitoring in patients who have had a continent diversion  

* Serum vitamin B12 measurement


 

Medical History  

* Smoking

* Occupational Exposure

* Urinary tract infection, chronic

* Insertion of indwelling catheter

* Urinary bladder stone

* Radiation therapy

* Cyclophosphamide use

* Schistosomiasis

* History of Phenacetin use

* Arsenic toxicity

* Family history of Malignant tumor of urinary bladder


 

Findings  

* Hematuria

* Bladder irritability

* Dysuria

* Increased frequency of urination

* Urgent desire to urinate


 

Tests  


 

Suspected and known bladder cancer  

* Endoscopy of bladder: Cystoscopy is indicated as part of the initial workup in suspected bladder cancer and for surveillance after treatment of known bladder cancer .


 

Suspected and known bladder cancer  

* Urine cytology: Abnormal cytology results are suggestive of bladder cancer; definitive diagnosis requires histological examination of pathologic tissue .


 

Suspected and known bladder cancer .  

* Transurethral resection of bladder neoplasm: Transurethral resection of bladder tumor allows for specimen retrieval and tumor excision .

* Bimanual examination: Tumor size and depth of penetration can be gauged with a bimanual examination under anesthesia before and after endoscopic surgery .


 

Initial workup and regular follow-up of certain tumor types  

* Abdominal contrast procedure: Intravenous pyelogram, CT urography, renal ultrasound with retrograde pyelogram, or MRI urogram is indicated if the initial cystoscopy shows noninvasive or muscle invasive disease .


 

Suspected metastatic disease or cystoscopic or pathologic evidence of sessile, high-grade, or muscle invasive disease .  

* CT of abdomen and pelvis: CT scanning is not recommended for the routine workup for bladder cancer but is indicated for suspected metastasis and cystoscopic or pathologic evidence of sessile, high-grade, or muscle-invasive disease .


 

Suspected metastatic bladder cancer  

* Plain chest X-ray

* Hepatic function panel

* Serum alkaline phosphatase measurement

* Radioisotope scan of bone


 

Differential Diagnosis  

* Transitional cell carcinoma of bladder

* Squamous cell carcinoma of bladder

* Adenocarcinoma of bladder

* Micropapillary transitional cell carcinoma of bladder

* Small cell carcinoma of bladder

* Sarcoma of bladder

* Malignant lymphoma

* Nephrogenic adenoma

* Cystitis cystica


 

Treatment  


 

Drug Therapy  


 

Intravesical treatment of bladder cancer  


 

BACILLUS OF CALMETTE AND GUERIN VACCINE, LIVE  


 

MITOMYCIN


 

THIOTEPA  


 

DOXORUBICIN HYDROCHLORIDE  


 

EPIRUBICIN HYDROCHLORIDE  


 

VALRUBICIN  


 

INTERFERON ALFA-2B  


 

Metastatic bladder cancer  


 

GEMCITABINE HYDROCHLORIDE - CISPLATIN


 

METHOTREXATE SODIUM - VINBLASTINE SULFATE - DOXORUBICIN HYDROCHLORIDE - CISPLATIN


 

Procedural Therapy  


 

Suspected and known bladder cancer .  

* Transurethral resection of bladder neoplasm: Transurethral resection of bladder tumor allows for specimen retrieval and tumor excision .


 

Select patients with bladder cancer including most patients with muscle invasive disease  

* Bladder excision: Radical cystectomy is recommended for most patients with resectable muscle invasive disease and some patients with nonmuscle invasive disease and recurrence after intravesical therapy .


 

Selected patients with bladder cancer  

* Radiation therapy: Radiation therapy may be used as part of a bladder sparing approach in muscle invasive disease or as part of palliative therapy .

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