Related Experiment Video
Updated: Oct 26, 2025

Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
Published on: August 24, 2019
Fatal attraction: intestinal amebiasis and COVID-19 as risk factors for colonic perforation
Jorge Alberto Dorantes1, Jose Octavio López-Becerril2, Maria G Zavala-Cerna3
1International Program of Medicine, Universidad Autónoma de Guadalajara, Zapopan, Jalisco, México.
Abstract:
The parasite Entamoeba histolytica, the causal agent of amebiasis, is considered a worldwide emergent disease and still represents an important cause of death in Mexico. Here, we describe a clinical case, involving an inflammatory response to both Coronavirus Infectious Disease 2019 (COVID-19) and intestinal amebiasis 54-year-old, COVID-positive Mexican gentleman was admitted to surgery following 6 days of hematochezia. An exploratory laparotomy and colonoscopy revealed multiple fibrous and amebic ulcerations (5-10 cm in diameter), with necrotic tissue predominantly localized in the sigmoid, descending and ascending colon. We discuss the pathophysiological interplay of both COVID-19 and intestinal amebiasis with the aim of highlighting a potentially novel aggravating mechanism in surgical patients suffering from colonic perforation in the setting of abdominal sepsis.
Insights
This case study highlights a severe inflammatory response in a COVID-19 patient with intestinal amebiasis. The dual infection led to extensive colon ulcerations and necrotic tissue, complicating surgical management.
Area of Science:
- Infectious Diseases
- Gastroenterology
- Critical Care Medicine
Background:
- Amebiasis, caused by Entamoeba histolytica, is a significant global health concern, particularly in Mexico.
- Coronavirus Infectious Disease 2019 (COVID-19) has emerged as a pandemic, impacting various organ systems.
- Co-infection with amebiasis and COVID-19 presents a complex clinical challenge.
Observation:
- A 54-year-old male, diagnosed with COVID-19, presented with hematochezia.
- Surgical exploration revealed extensive amebic ulcerations and necrosis in the colon.
- The patient exhibited a significant inflammatory response to both infections.
Findings:
- The clinical case illustrates a severe presentation of intestinal amebiasis in a COVID-19 positive patient.
- Multiple large ulcerations and necrotic tissue were observed across the sigmoid, descending, and ascending colon.
- Pathophysiological interplay between COVID-19 and amebiasis was noted.
Implications:
- This case suggests a potential novel mechanism where COVID-19 may aggravate intestinal amebiasis.
- Understanding this interplay is crucial for managing surgical patients with co-infections.
- Highlights the importance of considering co-infections in patients with severe gastrointestinal symptoms during the COVID-19 pandemic.
More Related Videos
08:24Injections of Lipopolysaccharide into Mice to Mimic Entrance of Microbial-derived Products After Intestinal Barrier Breach
Published on: May 2, 2018
07:32An Intravital Microscopy-Based Approach to Assess Intestinal Permeability and Epithelial Cell Shedding Performance
Published on: December 3, 2020
Related Concept Videos
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Esophageal Perforation-I: Introduction
The location of esophageal perforation can vary, occurring anywhere along the esophagus....
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...
Esophageal Perforation-II: Clinical Manifestations and Management
Clinical Manifestations:
Appendicitis-I: Introduction
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Irritable Bowel Syndrome I: Introduction
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...