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Case of the Week 378

What is the most likely diagnosis?

  • 37 year-old male with anemia and heme positive stool

Frontal view from a single contrast barium enema

1. Crohn disease
2. Carcinoma of the descending colon
3. Meckel's Diverticulum
4. Ulcerative colitis
5. Cathartic colon

Additional Images - None


Additional Images






3. Meckel's Diverticulum



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Meckel's Diverticulum

General Considerations “Rule of 2”

  • Most common congenital anomaly of GI tract
    • 2% of population, M=F
  • Within 2 feet proximal to ileocecal valve
  • 2 inches long, 2 cm wide
  • 2 types of heterotopic mucosa
  • Symptomatic in 2%
    • M>F (2:1)
    • Children > adults; often < 2 years old

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    is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.