Home   Chapter Home   Jobs   Conferences   Fellowships   Books

Advertisement

Ureters

Obstructive lesions

Reviewers: Sean Williamson, M.D., (see Reviewers page)
Revised: 12 July 2012, last major update May 2012
Copyright: (c) 2002-2012, PathologyOutlines.com, Inc.

General
=========================================================================

Intrinsic:
● Stones (<= 5 mm), usually lodge at (a) ureteropelvic junction, (b) where ureters cross iliac artery and (c) where ureters enter bladder
● Strictures (congenital or due to sclerosing retroperitoneal fibrosis)
● Tumors, blood clots, neurogenic causes

Extrinsic:
● Pregnancy, local inflammation, endometriosis, local tumors (ureteral obstruction is a major cause of death from cervical carcinoma)

Sclerosing retroperitoneal fibrosis:
● Adults 40+
● 70% idiopathic; others associated with ergot derivatives, beta blockers, adjacent inflammation, local tumors
● Associated with mediastinal fibrosis, sclerosing cholangitis, Riedel thyroiditis
● May have autoimmune origin, related to the spectrum of IgG4 associated disease (case report of 39 year old man, Pathol Res Pract 2011;207:712)

Micro description
=========================================================================

● Lymphocytes, plasma cells, eosinophils
● Variable granulomatous inflammation

End of Ureters > Obstructive lesions

This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.

All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at copyrightPathOut@gmail.com with any questions (click here for other contact information).