Peer-reviewedCC BY-NC-NDInternal Medicine
Intractable Diarrhea due to Enterovesical Fistula Caused by Recurrent Urinary Tract Infection with Bladder Outlet Obstruction: A Rare Clinical Presentation of "Urinary Diarrhea"
Abstract
An enterovesical fistula (EVF) is an abnormal connection between the intestinal tract and urinary bladder, typically developing with symptoms of pneumaturia and fecaluria. We herein present the case of an 81-year-old man with 10-day watery diarrhea. After ineffective empiric antidiarrheal treatment, computed tomography and cystography revealed EVF and gas in the bladder lumen and within its wall. His diarrhea improved after urethral catheter placement. EVF can occasionally cause diarrhea in a delicate pressure balance between the bladder and intestine. Clinicians should be aware of this unusual condition and include "urinary diarrhea" in the differential diagnosis of diarrhea.
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BibTeX
@article{miyagishima2026intractable,
title = {{Intractable Diarrhea due to Enterovesical Fistula Caused by Recurrent Urinary Tract Infection with Bladder Outlet Obstruction: A Rare Clinical Presentation of "Urinary Diarrhea"}},
author = {Daisuke Miyagishima and Airi Manabe and Katsuyori Ijima and Mitsuo Saito and Tadashi Mikame and Kazuya Yanagida and Makoto Endo and Ryoetsu Abe},
journal = {Internal Medicine},
year = {2026},
month = aug,
doi = {10.2169/internalmedicine.6544-25},
url = {https://www.jstage.jst.go.jp/article/internalmedicine/65/16/65_6544-25/_article},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Intractable Diarrhea due to Enterovesical Fistula Caused by Recurrent Urinary Tract Infection with Bladder Outlet Obstruction: A Rare Clinical Presentation of "Urinary Diarrhea"
AU - Daisuke Miyagishima
AU - Airi Manabe
AU - Katsuyori Ijima
AU - Mitsuo Saito
AU - Tadashi Mikame
AU - Kazuya Yanagida
AU - Makoto Endo
AU - Ryoetsu Abe
PY - 2026
DA - 2026/08/15
JO - Internal Medicine
DO - 10.2169/internalmedicine.6544-25
UR - https://www.jstage.jst.go.jp/article/internalmedicine/65/16/65_6544-25/_article
AB - An enterovesical fistula (EVF) is an abnormal connection between the intestinal tract and urinary bladder, typically developing with symptoms of pneumaturia and fecaluria. We herein present the case of an 81-year-old man with 10-day watery diarrhea. After ineffective empiric antidiarrheal treatment, computed tomography and cystography revealed EVF and gas in the bladder lumen and within its wall. His diarrhea improved after urethral catheter placement. EVF can occasionally cause diarrhea in a delicate pressure balance between the bladder and intestine. Clinicians should be aware of this unusual condition and include "urinary diarrhea" in the differential diagnosis of diarrhea.
SN - 1349-7235
SN - 0918-2918
ER -