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Prostate Cancer TNM Staging

Video Transcript:

Now we come to the T staging of the prostate cancer. T1 is clinically inapparent disease with no abnormality on palpation or imaging.

Now we come to the T staging of the prostate cancer. T1 is clinically inapparent disease with no abnormality on palpation or imaging.

It maybe an incidental finding on excision of prostate done for some other reason or it maybe diagnosed after biopsy of prostate done for elevated PSA.

T2 disease is localized to the prostate. It may be diagnosed with palpation or imaging. It is called as T2a when it occupies less than half of one lobe of the prostate.

T2b if it occupies more than 50% of one lobe of the prostate. Remember that all cases of the T2 disease are confined to the prostate.

Extracapsular extension of the tumor without any external organ infiltration is called as T3a. And an extracapsular extension to involve seminal vesicles is called as T3b.

T4 disease is infiltration of the adjacent organs. In this figure, the tumor infiltrates the perineal body. Here it extends posteriorly to involve the rectum. And here it extends superiorly to infiltrate the urinary bladder.

It may also extend laterally to involve the pelvic wall. This was T staging, now we come to the N-staging or nodal staging. Absence or regional lymph nodes involvement is called as N0, whereas involvement of regional lymph nodes is called as N1.

M1 or metastatic disease includes involvement of non-regional lymph nodes or spread to the distant organs.

With this, we come to the end of Prostate cancer TNM staging.

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