Difference between revisions of "Keratinising squamous metaplasia of the urinary bladder"
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==General== | ==General== | ||
*Non-keratinizing squamous metaplasia can be considered normal and is relatively common in trigone region of the bladder in women. | *Non-keratinizing squamous metaplasia can be considered normal and is relatively common in trigone region of the bladder in women. | ||
*Large age range (13-80 years).<ref name=pmid12429156/> | |||
*Predominantly males - almost 4:1 (27 males:7 females in one series<ref name=pmid12429156/>). | |||
==Microscopic== | ==Microscopic== | ||
Revision as of 12:56, 28 April 2016
Keratinising squamous metaplasia of the urinary bladder is a rare benign change of the urinary bladder associated with an increased risk of malignancy.[1]
General
- Non-keratinizing squamous metaplasia can be considered normal and is relatively common in trigone region of the bladder in women.
- Large age range (13-80 years).[1]
- Predominantly males - almost 4:1 (27 males:7 females in one series[1]).
Microscopic
Features:
- Squamous epithelium with hyperkeratosis or parakeratosis.
DDx:
- Squamous cell carcinoma of the urinary bladder.
- Metastatic squamous cell carcinoma, e.g. squamous cell carcinoma of the uterine cervix.