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SMALL ANIMAL RADIOLOGY CASE DISCUSSIONS Sarah Jones, DVM

SMALL ANIMAL RADIOLOGY CASE DISCUSSIONS Sarah Jones, DVM. Case 1. 11 YO MN Beagle Acute onset pelvic limb lameness. What would you recommend?. DIAGNOSTICS/OUTCOME. Ultrasound guided bone aspirate was inconclusive Recommended bone scan to rule out other polyostotic lesions

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SMALL ANIMAL RADIOLOGY CASE DISCUSSIONS Sarah Jones, DVM

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  1. SMALL ANIMAL RADIOLOGY CASE DISCUSSIONS Sarah Jones, DVM

  2. Case 1 • 11 YO MN Beagle • Acute onset pelvic limb lameness

  3. What would you recommend?

  4. DIAGNOSTICS/OUTCOME • Ultrasound guided bone aspirate was inconclusive • Recommended bone scan to rule out other polyostotic lesions • Ultimately amputation

  5. Case 2 • 3 month old M Boxer • Chronic history of vomiting and diarrhea • Acute worsening 2 days ago

  6. what would you recommend?

  7. DIAGNOSTICS/OUTCOME

  8. Case 3 • 3 YO MN GSD • 6 month history of back pain

  9. What would you recommend?

  10. Diagnostics/outcome • Abdominal ultrasound • Suspected pyelonephritis and ureteritis. • Aortic wall thickening and thrombosis • Sublumbar lymphadenopathy • FNA sublumbar lymph nodes • Cytology: Neutrophilic inflammation with fungal sepsis • Aspergillus Ag Positive • Cryptococcus Negative • Urine cultured fungal organisms

  11. Another example: discospondylitis

  12. Case 4 • 1 YO FS Pit Bull • Vomiting

  13. What would you recommend?

  14. Ultrasound

  15. Ultrasound

  16. Ultrasound

  17. Ultrasound

  18. DIAGNOSIS/OUTCOME • ULTRASOUND: Retroperitoneal effusion • Cytology: Neutrophilic exudate with hemorrhage and lipid, no infectious organisms seen • OUTCOME:Discharged home with supportive pain management

  19. CASE 5 • 7 YO MN Chihuahua • Chronic cough

  20. Case 6 • 6 MO FS DSH • Respiratory distress

  21. Diagnosis/outcome • Pneumothorax, likely tension pneumothorax • Therapeutic thoracocentesis • Supportive care: Pain medication, antibiotics, IVF

  22. Another example: Pneumothorax

  23. QUESTION 1 • What are some radiographic features of aggressive osseous lesions? • Cortical disruption • Permeativeosteolysis • Long zone of transition • Interrupted, irregular periosteal reaction • Poorly demarcated • Rapid rate of change

  24. Which features of this lesion could be characterized as aggressive?

  25. QUESTION 2 • What are your differentials for diffusely dilated small intestines? • Functional ileus (e.g. enteritis) • Distal mechanical obstruction (e.g. foreign body, distal annular neoplasia) • What does a “gravel sign” indicate? 1. Chronic, partial obstruction

  26. QUESTION 3 • What are a few radiographic differences between spondylosisdeformans and discospondylitis? Discospondylitis: Vertebral end plate irregularity/lysis with surrounding sclerosis Spondylosisdeformans: No end plate lysis. Smoothly marginated periosteal new bone bridging vertebral bodies usually along the ventral and lateral aspects.

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