Image DDX



Case of the Week 356

What's the most likely diagnosis?

  • 69 yo with surgery 10 years ago for gunshot wound

Scout from CT Scan

  1. Porcelain gallbladder
  2. Staghorn calculus
  3. Gossypiboma
  4. Gallstone
  5. Staghorn calculus

Additional Image - Non-enhanced CT of Lower Abdomen


Additional Image


Non-enhanced CT of Lower Abdomen




3. Gossypiboma



More (Click Discussion Tab)


Submitted by Theresa Kaufman, MSIV

General Considerations

  • Gossypiboma: retained surgical sponge
  • From Latin “gossypium” (cotton) and Swahili “boma” (place of concealment)
  • Barium-saturated threads are woven into one side of all surgical sponges in the United States, allowing the sponges to be readily identified radiographically
    • Usually appear as curvilinear densities, but may appear distorted if sponges have been folded
    • Markers may deteriorate over time and may not be detectable

    More ...


    This Week

    69 year-old with surgery 10 years ago for gunshot wound
    Imaging characteristics of ankylosing spondylitis, inflammatory bowel disease, psoriasis, Reiter's syndrome and rheumatoid sacroiliitis are reviewed; there is a mini-quiz at the end
    View this complete Video Podcast (Video Podcast 16-Fractures and Dislocations of the Wrist) in full-screen size on your computer without the need to download from iTunes
    Key points on recognizing the most common fractures and dislocations
    Basic CT imaging of the brain focusing on the findings of cerebrovascular accidents
    The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology
    Recognizing normal and  key abnormal intestinal gas patterns, free air and abdominal calcifications
    Some of the fundamentals of interpreting chest images
    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.