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Urethral caruncle with coexistence of intestinal heterotopia. A case report
1Department of Urology, Shimane Medical University, Enya-cho Izumo, Japan.
Insights
Urethral caruncle, a common postmenopausal disorder, can present with intestinal heterotopia. This case highlights metaplasia in urethral epithelium preceding this rare finding.
Area of Science:
- Gynecologic Pathology
- Urologic Pathology
- Gastrointestinal Pathology
Background:
- Urethral caruncle is a common benign polypoid growth of the distal urethra, typically affecting postmenopausal women.
- Intestinal heterotopia, the presence of gastrointestinal tissue in an abnormal location, is an extremely rare finding in urethral caruncles.
Observation:
- This report details a unique case of urethral caruncle with coexisting intestinal heterotopia.
- Histopathological examination revealed significant findings including lymphocytic infiltration, invagination of urethral transitional epithelium with nest and lumen formation, hypervascularity, and telangiectasia.
- These features suggest a metaplastic process in the transitional epithelium preceding the development of intestinal heterotopia.
Findings:
- The study identifies metaplasia of the transitional epithelium as a potential precursor to intestinal heterotopia within a urethral caruncle.
- The observed histological features provide insight into the pathogenesis of this rare condition.
Implications:
- Understanding the metaplastic pathway may aid in diagnosing and managing urethral caruncles with heterotopic elements.
- Further research into the etiology and clinical significance of urethral caruncle with intestinal heterotopia is warranted.
Abstract:
Urethral caruncle is one of the benign disorders which occurs frequently after the menopause. We describe a case of urethral caruncle with intestinal heterotopia, in which infiltration by lymphocytes, invagination of the urethral transitional epithelium causing nest formation, lumen formation, hypervascularity as well as teleangiectasia were observed, suggesting the occurrence of metaplasia in the transitional epithelium preceding the intestinal heterotopia. The aetiology and clinical significance of urethral caruncle exhibiting intestinal heterotopia are discussed.
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