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Case of the Week 543



What is the most likely diagnosis?

  • 71 year-old with sudden pain in arm



Radiograph of Proximal Humerus

  1. Anterior Shoulder Dislocation
  2. Bone Infarct
  3. Pathologic Fracture
  4. Posterior Shoulder Dislocation
  5. Giant Cell Tumor

No additional images

 

Additional Images

 


None


Answer:

 

3. Pathologic Fracture

 

More (Click Discussion Tab)

 

 

Pathologic Fracture

General Considerations

  • By definition, a fracture that occurs through bone which was previously abnormal
  • Most frequent through a metastatic lesion or multiple myeloma
    • May also involve enchondroma, unicameral bone cysts
  • Suspect when there is an avulsion fracture in an unusual location, spontaneous avulsion of lesser trochanter in adult
  • May occur in osteoblastic as well as osteolytic metastases

MORE . . .

 


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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.