Isolated Bladder Neck Invasion (IBNI) / Isolated Positive Bladder Neck Margin (IPBNM) Nomogram

 

This nomogram can be used to predict the probability of IBNI or IPBNM at radical prostatectomy.

 

Biopsy primary Gleason pattern ≥ 4
Biopsy secondary Gleason pattern ≥ 4
Biopsy longest tumor length, mm
Biopsy-transition zone features
Probability of IBNI or IPBNM at radical prostatectomy 0%

 

Reference: Cohen RJ, Li J, Shannon T. Prediction of bladder neck invasion and tumor extension to bladder neck margin by prostatic adenocarcinoma: a nomogram using biopsy data including transition zone tumor morphology. Human Pathology 2016; 57: 85-90.