Meckel diverticulum



Meckel diverticulum

Gastrointestinal system

Gastrointestinal system


Meckel diverticulum


0 / 7 complete

USMLE® Step 1 questions

0 / 1 complete

High Yield Notes

11 pages


Meckel diverticulum

of complete


USMLE® Step 1 style questions USMLE

of complete

A 5-year-old girl is brought to the pediatrician for evaluation of abdominal pain and bloody stools. The symptoms began three-weeks ago. The abdominal pain is intermittent and usually self-resolves within an hour. Past medical history is noncontributory. She has been meeting all developmental milestones. Physical examination reveals a nontender and nondistended abdomen with normal bowel sounds. Laboratory testing reveals the following:
 Laboratory value  Result 
 Hemoglobin  15.2 g/dL 
 Platelet count  260,000/mm3 
 Prothrombin time  14 seconds 
 Partial thromboplastin time  32 seconds 
A radiolabeled technetium-99 scan is performed and reveals increased uptake in a structure located in the right lower abdominal quadrant. The walls of this structure will most likely consist of which of the following? 

External References

First Aid








Abdominal pain

Meckel diverticulum p. 642


Meckel diverticulum p. 642

Intussusception p. 394

Meckel diverticulum as cause p. 393

Meckel diverticulum p. 393, 642


with Meckel diverticulum p. 393, 642

Volvulus p. 394

Meckel diverticulum p. 393


A Meckel's diverticulum is a malformation of the gastrointestinal system, characterized by a small pouch that forms on the wall of the distal ileal part of the small intestine. It occurs when during fetal development, part of the intestine fails to close up properly.

Meckel's diverticulum can cause problems if food or other material becomes trapped in the pouch, leading to bowel infection or even perforation. Surgery is usually needed to remove a Meckel diverticulum.


Copyright © 2023 Elsevier, its licensors, and contributors. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

Cookies are used by this site.

USMLE® is a joint program of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). COMLEX-USA® is a registered trademark of The National Board of Osteopathic Medical Examiners, Inc. NCLEX-RN® is a registered trademark of the National Council of State Boards of Nursing, Inc. Test names and other trademarks are the property of the respective trademark holders. None of the trademark holders are endorsed by nor affiliated with Osmosis or this website.