Inverted Meckel's diverticulum causing intussusception in a Crohn's patient

Area of Science:

• Gastroenterology
• Surgical Pathology

Background:

• Meckel's diverticulum (MD) is the most common congenital gastrointestinal malformation, often overlooked in adults.
• While intussusception is a known complication of MD, inverted intraluminal MD with ectopic tissue is exceptionally rare.

Observation:

• This report details a unique case of an adult Crohn's patient presenting with intussusception caused by an inverted intraluminal Meckel's diverticulum containing lipoma and ectopic gastric/pancreatic tissue.
• The patient's presentation was atypical, underscoring the diagnostic challenges associated with this rare condition.

Findings:

• Intussusception secondary to inverted intraluminal MD with ectopic tissue is a rare but serious complication.
• Diagnosis requires a multimodal approach, including imaging like CT, ultrasound, and angiography, as no single gold standard exists.

Implications:

• This case expands the known spectrum of Meckel's diverticulum complications.
• Early surgical intervention is crucial for managing this potentially life-threatening condition in adults.