Duodenal Obstruction Due to a Retroperitoneal Abscess Secondary to Pyelonephritis: A Rare but Significant…

Abstract

A 74-year-old woman presented with a fever and profuse vomiting. Contrast-enhanced computed tomography (CT) showed a marked dilation of the stomach and proximal duodenum and a retroperitoneal abscess extending from the right ureter due to inflammatory spread. She was treated conservatively with nasogastric decompression and intravenous antibiotics, thus leading to a gradual resolution of both the obstruction and the abscess. This case highlights a rare but important complication of a urinary tract infection, emphasizing that extrinsic inflammatory etiologies should be considered in the differential diagnosis of duodenal obstruction, and that timely recognition may allow for successful conservative management without the need to perform any invasive procedures.

Successful Nonoperative Management of Small Bowel Obstruction due to Distal Gastric Band Migration: A Rare Late Complication of LAGB
Chaled Alnakib, Nuha Riyad, Fahim Kanani +5
Case Reports in Surgery31 Oct 2026Peer-reviewedCC BY 4.0Full textSurgery & anaesthesiaPMC
Left Ventricular Outflow Tract Obstruction From Proximal Intimo-Intimal Intussusception: A Fatal Complication of Acute Type A Aortic Dissection.
Erich Burton, John C McGee, Neel Vahil +1
Cureus23 Sep 2026Peer-reviewedCC BYFull textGeneral medicineEurope PMC
Extensive Gastric Necrosis and Perforation Secondary to Intragastric Balloon-Related Gastric Outlet Obstruction: A Case Report
Abderrahim Ait Abderrhim, Hicham Assofi, Karim Ibn Majdoub Hassani
Cureus19 Oct 2026Peer-reviewedCC BYFull textGeneral medicineEurope PMC
Renal Abscess Secondary to Urinary Tract Obstruction Caused by Pelvic Organ Prolapse: A Report of Two Cases
Hiroki Sai, Kumiko Kato, Atsushi Kiyota +2
IJU case reports15 Oct 2026Peer-reviewedCC BYFull textGeneral medicineEurope PMC
High intestinal obstruction secondary to peritoneal metastases from invasive lobular breast carcinoma: A case report of an unusual presentation
Valentina Testini, Umberto Tupputi, Luca Roberto +7
Radiology case reports3 Oct 2026Peer-reviewedCC BY-NC-NDFull textGeneral medicineEurope PMC

Cite

BibTeX RIS

BibTeX

@article{tanaka2026duodenal,
  title = {{Duodenal Obstruction Due to a Retroperitoneal Abscess Secondary to Pyelonephritis: A Rare but Significant Complication}},
  author = {Ren Tanaka and Toru Matsui and Chihiro Tanaka and Yusuke Niwa and Oki Nakano and Hiromitsu Oka and Yutaka Honda and Masaaki Takamura},
  journal = {Internal Medicine},
  year = {2026},
  month = jul,
  doi = {10.2169/internalmedicine.6422-25},
  url = {https://www.jstage.jst.go.jp/article/internalmedicine/65/14/65_6422-25/_article},
  note = {CC BY-NC-ND},
}

RIS

TY  - JOUR
TI  - Duodenal Obstruction Due to a Retroperitoneal Abscess Secondary to Pyelonephritis: A Rare but Significant Complication
AU  - Ren Tanaka
AU  - Toru Matsui
AU  - Chihiro Tanaka
AU  - Yusuke Niwa
AU  - Oki Nakano
AU  - Hiromitsu Oka
AU  - Yutaka Honda
AU  - Masaaki Takamura
PY  - 2026
DA  - 2026/07/15
JO  - Internal Medicine
DO  - 10.2169/internalmedicine.6422-25
UR  - https://www.jstage.jst.go.jp/article/internalmedicine/65/14/65_6422-25/_article
AB  - A 74-year-old woman presented with a fever and profuse vomiting. Contrast-enhanced computed tomography (CT) showed a marked dilation of the stomach and proximal duodenum and a retroperitoneal abscess extending from the right ureter due to inflammatory spread. She was treated conservatively with nasogastric decompression and intravenous antibiotics, thus leading to a gradual resolution of both the obstruction and the abscess. This case highlights a rare but important complication of a urinary tract infection, emphasizing that extrinsic inflammatory etiologies should be considered in the differential diagnosis of duodenal obstruction, and that timely recognition may allow for successful conservative management without the need to perform any invasive procedures.
SN  - 1349-7235
SN  - 0918-2918
ER  -

Abstract

Related

Cite