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The Korean Journal of Pathology 1991;25(1): 76-80.
Keratinizing Desquamative Squamous Metaplasia of the Upper Urinary Tract: A case report.
Soo Min Kang, Sun Young Kim
Department of Pathology, School of Medicine Gyeongsang National University, Jinju, Korea.
Keratinizing desquamative squamous metaplasia of the transitional epithelium occurs rarely in the upper urinary tract, especially in the ureter. It is associated in most cases with long-standing chronic inflammation but the exact pathogenesis is unknown, and the relationship to cancer has continued to be controversial. More cases should be accumulated for a better assessmnt of this lesion. Recently, we experienced a case of keratinizing desquamative squamous metaplasia in the renal pelvis, adjacent calyces and ureter following acute and chronic pyelonephritis. Herein, we are presenting our case with a review of literatures.
Key Words: Squamous metaplasia; Renal pelvis; Urinary tract; Transitional epithelium