Notes
Slide Show
Outline
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22 “Must See” Diagnostic Images for Medical Students
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AMSER’s “Shortlist”
  • AMSER is the national Alliance of Medical Student Educators in Radiology
  • Their National Curriculum for Medical Students, developed by Kitt Shaffer, MD and Petra Lewis, MD, contains a “Diagnostic Shortlist” of “must see" images “all students should recognize”
  • This is a limited list of diagnoses that AMSER believes all students should be able to recognize, regardless of their planned specialty
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The Owl
  • Wherever you see the owl graphic, that slide contains a hyperlink to additional information. Click on the blue link
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Pneumothorax
  • To learn more about pneumothorax, go to:  Recognizing a Pneumothorax
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Pneumomediastinum
  • To learn more about pneumomediastinum, go to: Pneumomediastinum
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Pneumoperitoneum
  • To learn more about pneumoperitoneum, go to: Recognizing Free Air
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Effect of Position - Layering
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Pleural Effusion
  • To learn more about pleural effusions, go to: Recognizing a Pleural Effusion
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Pulmonary Edema
  • To learn more about pulmonary edema, go to: Recognizing Congestive Heart Failure
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Aortic Dissection
  • To learn more about aortic dissection, go to: Aortic Dissection
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Ruptured Aortic Aneurysm
  • Enlargement of abdominal aorta > 3cm
    • Usually 2° to atherosclerosis
    • Below renals, above iliacs
  • About 20-25% rupture
    • <4cm~10%; >10 cm~60%
    • Retroperitoneal, usually on left
    • Into GI tract: massive hemorrhage
    • Into IVC: rapid cardiac decompensation


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Diaphragmatic Rupture
General
  • 5% of all diaphragmatic hernias
  • Most (90%) are left-sided
    • Central and posterior >10cm in length
    • Contain stomach, colon, small bowel, omentum, spleen
  • Half have no initial abnormal radiographic findings
  • Half are missed clinically
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Diaphragmatic Rupture
General
  • Associated with
    • Fx ribs
    • Pneumoperitoneum
    • Ruptured spleen
  • Delayed diagnosis = higher mortality
  • MRI most useful in showing site of tear


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Diaphragmatic Rupture
  • To learn more about diaphragmatic rupture, go to:  Diseases of the Diaphragm
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Small Bowel Obstruction
  • To learn more about small bowel obstructions, go to: Recognizing Obstruction and Ileus
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Cecal and Sigmoid volvulus
  • To learn more about sigmoid volvulus, go to: Sigmoid volvulus
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Carcinoma of the Colon
  • To learn more about carcinoma of the colon, go to: Carcinoma of the Colon
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Misplaced Lines and Tubes
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Misplaced lines and tubes
  • For more on the proper location of lines and tubes, go to: Tubes and Lines: What, Where and Whoops
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Child Abuse
  • For more on Battered Child Syndrome (child abuse), go to : Child abuse
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Hangman’s Fracture
  • Most common fracture of C2
    • Most common cervical spine fracture
  • Hyperextension/compression fracture
  • Fractures through the pedicles of C2 with anterior slip of C2 on C3
  • Not associated with neuro deficit
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Cervical Spine Injuries
  • For more on injuries to the cervical spine, go to : Cervical Spine Fractures and Dislocations
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Fractures and Dislocations
  • For more on fractures and dislocations, go to : Recognizing Fractures and Dislocations
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Fractures and Dislocations
  • For more on fractures and dislocations, go to : Recognizing Fractures and Dislocations
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Fractures and Dislocations
  • For more on fractures and dislocations, go to : Recognizing Fractures and Dislocations
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The 22 “Must-See” Diagnoses
  • Pneumothorax
  • Pneumomediastinum
  • Pneumoperitoneum
  • Pleural effusion
  • Pulmonary edema
  • Aortic dissection
  • Aortic rupture
  • Diaphragmatic rupture
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The 22 “Must-See” Diagnoses
  • 9.  Small bowel obstruction
  • 10. Cecal and sigmoid volvulus
  • 11. Distal Large Bowel Obstruction
  • 12. Ascites
  • 13. Misplaced lines and tubes
  • 14. Child abuse
  • 15. Stroke


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The 22 “Must-See” Diagnoses
  • 16. Traumatic intracranial hemorrhage
  • 17. Increased intracranial pressure
  • 18. Space occupying lesions
  • 19. Cervical spine injury
  • 20. Fracture with extension into joint
  • 21. Elbow joint effusion
  • 22. Shoulder dislocation


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