CASE 7756 Published on 18.08.2009

Acute abdomen caused by stercoral perforation

Section

Abdominal imaging

Case Type

Clinical Cases

Authors

Rosa CF.
Azienda Ospedaliera-Universitaria, Department of Emergency Radiology, Ospedale S.Martino, Genoa, Italy.

Patient

83 years, female

Clinical History
The patient presented with vomiting, cronic constipation and severe abdominal pain. Suspected diagnosis of stercoral perforation was made by MDCT confirmed after laparotomy. The patient died 1 day later.
Imaging Findings
The 83 year old female patient presented at our department with vomiting, with severe abdominal pain, intra-abdominal sepsis and chronic constipation.
The abdomen was rigid, little tractability, Blumberg positive; at the rectal exploration mucus and blood was found. MDCT performed later showed a faecal distension of colon, the presence of multiple abscesses in pelvis and sigmoid perforation caused by the breaking of faecalomas. The surgical treatment was multiple segmentary resection of colon, splenectomy and temporary colostomy. The patient died after heart failure 1 day later.
Discussion
Stercoral perforation is a rare event: the frequency is high in the sigmoid and rectum-sigmoid junction (77%) for the hypoperfusion of the antimesenteric border and the diameter of the viscerum.
It happens mostly in old patients than in younger people with neurological defects. Mechanical obstruction, motility disorder, megacolon, foreign bodies ingestion, barium enema exams, gallstones and the use of narcotics, tranquilizers, NSAIDs, antidepressants are the major predisposing factors. The presence of large and stone-hard faecalomas causes deformity of colon and creates a pressure that leads to bowel-wall necrosis, ischemia, ulceration and subsequent perforation. The mortality is 35%.
Differential Diagnosis List
STERCORAL PERFORATION
Final Diagnosis
STERCORAL PERFORATION
Case information
URL: https://www.eurorad.org/case/7756
DOI: 10.1594/EURORAD/CASE.7756
ISSN: 1563-4086