Radiology Cases

1. Case Conference
July 24, 2015

2. Pancreatitis

3. Imaging Indications
• Acute interstitial edematous pancreatitis
– Clinical diagnosis
• Necrotizing pancreatitis

5. Pyelonephritis

6. Imaging Indications
• Imaging often not necessary
• May be appropriate in the following
circumstances
– Suspected obstruction
– High risk (diabetes, immunocompromise)
– Uncertain diagnoses
– Previous renal abnormality

8. Positive UA

9. Positive UA

10. Emphysematous Cystitis
• Rare
– Diabetics, immunocompromised, neurogenic
bladders
• E. Coli, Enterobacter, Klebsiella, Proteus, S.
Aureus, Clostridium perfringens, Candida
albicans

11. Gastric Bypass

12. Intussusception

13. Fracture

14. Proximal Femur Fractures

15. Fracture

16. Segond Fracture
• Avulsion fracture
– Lateral tibial rim cortex, just distal to the plateau
• Internal rotation, varus stress
– Anterolateral rotatory instability
• Lateral capsular ligament avulsion?
– Alternatively, IT band, fibular collateral ligament
• Strong association with ACL tear (~75%) and
meniscal tears

17. Genu varum, Genu valgum

18. Fracture

19. Lange-Hansen

20. Suspected Pulmonary Embolism

21. Valsalva
• SVC with bright contrast, IVC not well
opacified, with mixing around the right atrium
• Important to differentiate from imprecise
contrast bolus timing as you can potentially
repeat a PE CT if there is valsalva
• Repeat the study on expiratory phase

22. Wells Criteria

23. D-Dimer
• High negative predictive value
• Poor positive predictive value

24. Abdominal Pain

25. Abdominal Pain

26. Sigmoid Volvulus