Bladder Cancer (cont.)
Kevin C. Zorn, MD, FRCSC, FACS
Gagan Gautam, MD, MCh
Charles Patrick Davis, MD, PhD
Charles Patrick Davis, MD, PhD
Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.
In this Article
What is bladder cancer grading?
Grading of bladder cancer is done by the pathologist by examination of the tumor specimen under a microscope. It is a measure of the extent by which the tumor cells differ in their appearance from normal bladder cells. Greater the distortion of appearance, the higher the grade assigned. High-grade cancers are more aggressive than low-grade ones and have a greater propensity to invade into the bladder wall and spread to other parts of the body.
In 2004, the World Health Organization developed a new grading system for bladder cancer. This system divides bladder cancers into the following groups.
Stage and grade of bladder cancer play a very important role not just in deciding the treatment that an individual patient should receive but also in quantifying the chances of success with that treatment. Of note, carcinoma in situ (CIS or Tis, as mentioned in the section on staging) is always high grade.
What is transurethral surgery or "TURBT" for bladder cancer?
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The initial surgical procedure that a patient undergoes after the diagnosis of bladder cancer is established is usually a transurethral resection of bladder tumor or "TURBT." It is done with the help of special instruments attached to a cystoscope (mentioned earlier in the section on investigations) and involves cutting out the tumor and removing it from the bladder with the help of an electrical cautery device. This surgery is done through the normal urinary passage and does not involve an external cut on the body. It is the initial treatment of bladder cancer as well as a staging procedure since the specimen retrieved from the surgery is sent to a pathologist who gives his/her inference on the depth of invasion of the tumor in the bladder wall (T stage) as well as the grade (high/low). Further treatment depends to a large extent on the findings of this initial surgery as well as the other staging investigations and is covered in the sections to follow.
Medically Reviewed by a Doctor on 11/26/2013
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