Difference between revisions of "Urethra"
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The '''urethra''' takes the urine from the [[urinary bladder]] to outside of the body. | |||
It is occasionally afflicited by tumours. | |||
==Anatomy== | |||
*Proximal portion = urothelium. | |||
*Distal portion = squamous. | |||
===Males=== | |||
*Pre-prostatic urethra - transitional epithelium. | |||
*[[Prostate gland|Prostatic]] urethra - transitional epithelium. | |||
**Cancer arising at this site is ''[[prostatic urothelial carcinoma]]''. | |||
*Membranous urethra (from apex of prostate to bulb of penis (bulb of the corpus spongiosusm)) - pseudostratified columnar epithelium. | |||
*Spongy urethra - pseudostratified columnar epithelium (proximal) & stratified squamous (distal). | |||
==Pathology== | |||
*[[Squamous cell carcinoma]]. | |||
*[[Urothelial carcinoma]]. | |||
*[[Prostatic carcinoma]] - may have pseudopapillae<ref name=pmid24503758>{{cite journal |author=Gordetsky J, Epstein JI |title=Pseudopapillary features in prostatic adenocarcinoma mimicking urothelial carcinoma: a diagnostic pitfall |journal=Am. J. Surg. Pathol. |volume=38 |issue=7 |pages=941–5 |year=2014 |month=July |pmid=24503758 |doi=10.1097/PAS.0000000000000178 |url=}}</ref> and mimic urothelial carcinoma - see ''[[urothelial carcinoma-like prostatic carcinoma]]''. | |||
*[[Clear cell adenocarcinoma of the urethra]] - similar to [[clear cell carcinoma]] of the gynecologic tract. | |||
*[[Urethral caruncle]]. | |||
*[[Lichen sclerosus]].<ref name=pmid24268357>{{Cite journal | last1 = Stewart | first1 = L. | last2 = McCammon | first2 = K. | last3 = Metro | first3 = M. | last4 = Virasoro | first4 = R. | title = SIU/ICUD Consultation on Urethral Strictures: Anterior urethra-lichen sclerosus. | journal = Urology | volume = 83 | issue = 3 Suppl | pages = S27-30 | month = Mar | year = 2014 | doi = 10.1016/j.urology.2013.09.013 | PMID = 24268357 }}</ref> | |||
*[[Prostatic-type polyp]]. | |||
==See also== | |||
*[[Urothelium#Urethra_in_males|Urethra in males]]. | |||
*[[Urothelium]]. | |||
==References== | |||
{{Reflist|1}} | |||
[[Category:Genitourinary pathology]] | |||
Latest revision as of 20:11, 30 December 2016
The urethra takes the urine from the urinary bladder to outside of the body.
It is occasionally afflicited by tumours.
Anatomy
- Proximal portion = urothelium.
- Distal portion = squamous.
Males
- Pre-prostatic urethra - transitional epithelium.
- Prostatic urethra - transitional epithelium.
- Cancer arising at this site is prostatic urothelial carcinoma.
- Membranous urethra (from apex of prostate to bulb of penis (bulb of the corpus spongiosusm)) - pseudostratified columnar epithelium.
- Spongy urethra - pseudostratified columnar epithelium (proximal) & stratified squamous (distal).
Pathology
- Squamous cell carcinoma.
- Urothelial carcinoma.
- Prostatic carcinoma - may have pseudopapillae[1] and mimic urothelial carcinoma - see urothelial carcinoma-like prostatic carcinoma.
- Clear cell adenocarcinoma of the urethra - similar to clear cell carcinoma of the gynecologic tract.
- Urethral caruncle.
- Lichen sclerosus.[2]
- Prostatic-type polyp.
See also
References
- ↑ Gordetsky J, Epstein JI (July 2014). "Pseudopapillary features in prostatic adenocarcinoma mimicking urothelial carcinoma: a diagnostic pitfall". Am. J. Surg. Pathol. 38 (7): 941–5. doi:10.1097/PAS.0000000000000178. PMID 24503758.
- ↑ Stewart, L.; McCammon, K.; Metro, M.; Virasoro, R. (Mar 2014). "SIU/ICUD Consultation on Urethral Strictures: Anterior urethra-lichen sclerosus.". Urology 83 (3 Suppl): S27-30. doi:10.1016/j.urology.2013.09.013. PMID 24268357.