Related Experiment Video
Updated: Aug 24, 2026

Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
Ileocecal actinomycosis: a case report
L Thanos1, S Mylona, V Kalioras
1Radiology Department, Korgialeneio-Benakeio, Red Cross Hospital of Athens, Athanasaki 1 St., 11526 Athens, Greece. louthard@yahoo.com
Insights
A rare case of abdominal actinomycosis presented as an inflammatory mass in a 51-year-old male. Surgical resection and histology confirmed actinomycosis lesions in the perienteric fat.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Radiology
Background:
- Actinomycosis is a rare bacterial infection typically caused by *Actinomyces israelii*.
- It can manifest in various body sites, including the abdomen, often mimicking other conditions like malignancy or inflammatory bowel disease.
Observation:
- A 51-year-old male presented with abdominal pain and bloody diarrhea.
- Spiral computed tomography (CT) revealed an inflammatory mass with cystic and solid features in the ileocecal region, extending to the peritoneum and right iliopsoas muscle, with associated lymphadenopathy.
Findings:
- Histopathological examination after surgical resection confirmed the presence of actinomycosis lesions.
- The lesions were specifically identified within the perienteric fat.
Implications:
- This case highlights the importance of considering actinomycosis in the differential diagnosis of ileocecal masses, especially when imaging findings are atypical.
- Accurate diagnosis through histology is crucial for appropriate treatment, which typically involves prolonged antibiotic therapy.
Abstract:
A 51-year-old male with a clinical history of abdominal pain and bloody diarrhea underwent spiral computed tomography of the abdomen with intravenous contrast medium enhancement. The findings were an inflammatory mass with cystic and solid characteristics arising from the ileocecal region and extending to the peritoneum and right iliopsoas muscle, with adjacent lymphadenopathy. Histology after surgical resection confirmed the diagnosis of actinomycosis lesions in perienteric fat.
Related Concept Videos
Amebiasis
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
Inflammatory Bowel Disease IV: Clinical Manifestations
Inflammatory Bowel Disease III: Crohn's Disease
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents