Related Experiment Video
Updated: Sep 23, 2025
08:51
Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
Published on: August 24, 2019
10.1K
Inverted Meckel's Diverticulum Masquerading as a Subepithelial Tumor of the Ileum
Mohammad Noubani1, Rohit Bhan1, Nimra Ghani1
1Department of Surgery, Renaissance School of Medicine, Stony Brook, NY.
ACG Case Reports Journal
|May 13, 2022
Summary
An inverted Meckel's diverticulum mimicked a submucosal mass in a patient with chronic anemia. Intraoperative enteroscopy successfully identified and allowed surgical resection of this rare condition.
Area of Science:
- Gastroenterology
- Surgical Pathology
Background:
- Chronic iron deficiency anemia can present with obscure gastrointestinal bleeding.
- Meckel's diverticulum is a congenital anomaly that can cause various complications.
Observation:
- A 53-year-old woman with refractory iron deficiency anemia underwent multiple endoscopic evaluations.
- Capsule endoscopy and double-balloon enteroscopy were inconclusive for the proximal ileal lesion.
Findings:
- Intraoperative enteroscopy revealed a large, pedunculated, intraluminal subepithelial lesion.
- Pathology confirmed the lesion to be an inverted Meckel's diverticulum.
Implications:
- This case highlights the importance of considering inverted Meckel's diverticulum in the differential diagnosis of obscure gastrointestinal bleeding.
- Intraoperative enteroscopy is crucial for diagnosing and managing intraluminal lesions not detected by other methods.
Related Concept Videos
01:22Appendicitis-I: Introduction
692
The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
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...
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...
692
01:27Histology of the Small Intestine
1.8K
The small intestine exhibits a unique histological structure that significantly enhances its function in digestion and nutrient absorption. These structures include circular folds, villi, and various specialized cells that collectively facilitate the digestion of food.
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
1.8K
01:23Renewal of Intestinal Stem Cells
2.7K
The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
2.7K
01:30Inflammatory Bowel Disease II: Crohn's Disease
413
Introduction
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...
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...
413
01:26Histology of the Large Intestine
1.7K
The large intestine, a vital component of the gastrointestinal tract, is structured with four main layers: the mucosa, submucosa, muscularis, and serosa. Each layer performs a distinct role in facilitating the smooth functioning of the large intestine.
The innermost mucosa layer comprises simple columnar epithelium, lamina propria, and muscularis mucosae. This layer is primarily populated with absorptive cells, tasked with water absorption, and goblet cells, responsible for secreting mucus to...
The innermost mucosa layer comprises simple columnar epithelium, lamina propria, and muscularis mucosae. This layer is primarily populated with absorptive cells, tasked with water absorption, and goblet cells, responsible for secreting mucus to...
1.7K
01:21Inflammatory Bowel Disease V: Surgical Management
235
Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
Here are some common surgical interventions for IBD:
235