Calyceal diverticulum

Revision as of 14:55, 28 September 2012 by Prashanthsaddala (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

WikiDoc Resources for Calyceal diverticulum

Articles

Most recent articles on Calyceal diverticulum

Most cited articles on Calyceal diverticulum

Review articles on Calyceal diverticulum

Articles on Calyceal diverticulum in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Calyceal diverticulum

Images of Calyceal diverticulum

Photos of Calyceal diverticulum

Podcasts & MP3s on Calyceal diverticulum

Videos on Calyceal diverticulum

Evidence Based Medicine

Cochrane Collaboration on Calyceal diverticulum

Bandolier on Calyceal diverticulum

TRIP on Calyceal diverticulum

Clinical Trials

Ongoing Trials on Calyceal diverticulum at Clinical Trials.gov

Trial results on Calyceal diverticulum

Clinical Trials on Calyceal diverticulum at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Calyceal diverticulum

NICE Guidance on Calyceal diverticulum

NHS PRODIGY Guidance

FDA on Calyceal diverticulum

CDC on Calyceal diverticulum

Books

Books on Calyceal diverticulum

News

Calyceal diverticulum in the news

Be alerted to news on Calyceal diverticulum

News trends on Calyceal diverticulum

Commentary

Blogs on Calyceal diverticulum

Definitions

Definitions of Calyceal diverticulum

Patient Resources / Community

Patient resources on Calyceal diverticulum

Discussion groups on Calyceal diverticulum

Patient Handouts on Calyceal diverticulum

Directions to Hospitals Treating Calyceal diverticulum

Risk calculators and risk factors for Calyceal diverticulum

Healthcare Provider Resources

Symptoms of Calyceal diverticulum

Causes & Risk Factors for Calyceal diverticulum

Diagnostic studies for Calyceal diverticulum

Treatment of Calyceal diverticulum

Continuing Medical Education (CME)

CME Programs on Calyceal diverticulum

International

Calyceal diverticulum en Espanol

Calyceal diverticulum en Francais

Business

Calyceal diverticulum in the Marketplace

Patents on Calyceal diverticulum

Experimental / Informatics

List of terms related to Calyceal diverticulum

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Cafer Zorkun M.D., PhD.

Synonyms and Related Keywords: Pyelocalyceal diverticulum

Overview

Calyceal diverticulum is a relatively uncommon cyst-like lesion, often discovered incidentally during ultrasound examination of the kidneys. Calyceal diverticulum is a urine-containing cavity within the renal parenchyma, communicating with the collecting system through a narrow channel. [1]

Classification

  • Two types are identified:
    • One is related to a minor calyx and usually located in the upper pole
    • Other is connected with the pelvis or a major calyx in the central portion of the kidney.
  • The majority of calyceal diverticulum are small and asymptomatic, and do not require any treatment.
  • Calyceal diverticulua may rarely cause urinary tract infection, renal colic, pyuria, hematuria or hypertension.
  • Mobile calculi and milk of calcium are characteristic findings in calyceal diverticulum.

Diagnosis

Ultrasound

  • Ultrasound examination suggests the diagnosis of calyceal diverticulum and it has a variable appearance.
  • The diverticulum may appear as a cyst-like lesion, indistinguishable from a simple cyst.
  • Recognition of mobile echogenic material within such a cyst-like structure is considered characteristic of milk of calcium. A cyst-like mass with milk of calcium is presumed to be a calyceal diverticulum.

CT

  • CT has an important role in the presence of a complicated cystic mass diagnosed by ultrasound without the characteristic features of calyceal diverticulum.
  • The demonstration of the layering of contrast medium on delayed images is pathognomonic of these lesions.
  • The patency of the diverticulum is demonstrated by the gradual opacification on delayed images.

Images courtesy of RadsWiki

References

  1. Rathaus, V, Konen, O, Werner, M, Shapiro Feinberg, M, Grunebaum, M, Zissin, R. Pyelocalyceal diverticulum: the imaging spectrum with emphasis on the ultrasound features. Br J Radiol 2001 74: 595-601.

External Links

Template:WH Template:WS