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Difference between revisions of "Urothelium"
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note about terminology
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The '''urothelium''' lines the upper portion of the genitourinary tract... and a bit of the lower part. | The '''urothelium''' lines the upper portion of the genitourinary tract... and a bit of the lower part. | ||
==Extent== | ==Extent of urothelium== | ||
===Urethra in males=== | ===Urethra in males=== | ||
*Pre-prostatic urethra - transistional epithelium. | *Pre-prostatic urethra - transistional epithelium. | ||
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#Round structures should make you think of papillae and prompt looking for fibrovascular cores. | #Round structures should make you think of papillae and prompt looking for fibrovascular cores. | ||
#Fibrovascular cores = papillae... may be cancer! | #Fibrovascular cores = papillae... may be cancer! | ||
==Note about terminology== | |||
*The bladder is rather unique in that "carcinoma" is a label used for things that are non-invasive. | |||
**It has been suggested that many things that are called ''papillary urothelial carcinoma'', would be better described as ''papillary intraurothelial neoplasia''.<ref name=pmid19160695>{{Cite journal | last1 = Van der Kwast | first1 = TH. | last2 = Zlotta | first2 = AR. | last3 = Fleshner | first3 = N. | last4 = Jewett | first4 = M. | last5 = Lopez-Beltran | first5 = A. | last6 = Montironi | first6 = R. | title = Thirty-five years of noninvasive bladder carcinoma: a plea for the use of papillary intraurothelial neoplasia as new terminology. | journal = Anal Quant Cytol Histol | volume = 30 | issue = 6 | pages = 309-15 | month = Dec | year = 2008 | doi = | PMID = 19160695 }}</ref> | |||
**If the terminology in the urinary bladder were applied to the colon, we'd call all ''adenomas'', i.e. pre-malignant lesions, ''carcinomas''. | |||
==Approach== | ==Approach== | ||