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4 segments of urethra
penile
bulbar
membranous
prostatic
Urethral injury classification
1- stretched posterior urethra, distrupted puboprostatic ligaments
2- membranous urethral tear above urogenital diaphragm
3- membranous and bulbous urethral injury with ruptured urogenital diaphragm
4- bladder base tear extending into urethra
5- bulbous urethra injury(straddle)
Straddle injury
bulbous urethra(type 5)
smashed against pubic symphysis
short segment stricture
Gonococcal urethral stricture
bulbous urethra
long irregular stricture
urethral ca
SCC 80%
*prostatic urethra TCC 90%
*urethral diverticulum Adenocarcinoma
Female urethral diverticulum
repeated urinary infection
stress incontinence
Best seen on sagittal MR
saddle-bag configuration
adenocarcinoma