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Fat Within the Wall of the Urinary Bladder: Computed Tomographic Appearance

Thickman, David MD

Journal of Computer Assisted Tomography: September-October 2009 - Volume 33 - Issue 5 - p 695-697
doi: 10.1097/RCT.0b013e31818d8de6
Abdominal Imaging

Objective: The objective of this paper was to describe the computed tomographic appearance, characteristics, and significance of fat in the wall of the urinary bladder.

Methods: Twenty-three cases of intramural fat were reviewed. Use of intravenous contrast, sex, and degree of bladder distention were noted. Location of intravesical fat was tabulated.

Results: Intramural fat is typically seen as a thin low-density band along the anterior and superior portions of a partially filled urinary bladder. Most of the cases are in men (90%) and are seen on unenhanced studies (>80%). The prevalence of intramural fat was just less than 2%.

Conclusions: Fat within the wall of the urinary bladder can be a normal histological finding that is detected at computed tomography typically in patients with nondistended urinary bladders on unenhanced studies.

From the NightHawk Radiology Services, Coeur d'Alene, ID.

Received for publication July 27, 2008; accepted September 9, 2008.

Reprints: David Thickman, MD, NightHawk Radiology Services, Coeur d'Alene, 601 Front Ave, Suite 502, ID 83814 (e-mail:

© 2009 Lippincott Williams & Wilkins, Inc.