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Related Experiment Video

Updated: May 5, 2026

A Ligated Intestinal Loop Model in Anesthetized Specific Pathogen Free Chickens to Study Clostridium Perfringens Virulence

A Ligated Intestinal Loop Model in Anesthetized Specific Pathogen Free Chickens to Study Clostridium Perfringens Virulence

Published on: October 11, 2018

Colovesical fistula caused by an ingested chicken bone.

Matthew B Clements¹, Traci L Hedrick, David L Colen

¹University of Virginia School of Medicine, Charlottesville, VA.

|December 4, 2013

Summary

A chicken bone caused a rare colovesical fistula, a connection between the sigmoid colon and bladder. Endoscopic removal of part of the bone led to spontaneous passage of the rest, resolving the condition.

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Last Updated: May 5, 2026

A Ligated Intestinal Loop Model in Anesthetized Specific Pathogen Free Chickens to Study Clostridium Perfringens Virulence

A Ligated Intestinal Loop Model in Anesthetized Specific Pathogen Free Chickens to Study Clostridium Perfringens Virulence

Published on: October 11, 2018

Murine Model of Central Venous Stenosis using Aortocaval Fistula with an Outflow Stenosis

Murine Model of Central Venous Stenosis using Aortocaval Fistula with an Outflow Stenosis

Published on: July 11, 2019

Area of Science:

Gastroenterology
Urology
Surgical Innovation

Background:

Colovesical fistula, an abnormal connection between the colon and bladder, is most commonly linked to sigmoid colon diverticulitis.
While diverticulitis is the primary cause, other etiologies include neoplasms, inflammatory bowel disease, iatrogenic injury, radiation, trauma, and foreign bodies.
Foreign body-induced colovesical fistula is a rare but significant clinical presentation.

Observation:

A patient presented with a colovesical fistula originating from the sigmoid colon.
The fistula was attributed to a chicken bone foreign body lodged within a colonic diverticulum.
The clinical presentation highlights an unusual cause of gastrointestinal-urinary tract communication.

Findings:

A portion of the ingested chicken bone was successfully removed via colonoscopy under direct visualization.
The remaining fragment of the foreign body was spontaneously expelled through the urethra after the patient's discharge.
This case demonstrates a unique resolution pathway for a foreign body-induced colovesical fistula.

Implications:

This case underscores the importance of considering foreign bodies, even seemingly innocuous ones like chicken bones, in the differential diagnosis of colovesical fistulas.
Endoscopic intervention can be a viable first-line treatment for foreign body retrieval in colovesical fistula cases.
The spontaneous passage of the remaining foreign body offers insights into potential conservative management strategies for specific fistula presentations.