1. Radiology Packet 32 Gastrointestinal II

2. 15 yr old MC DSH “Puddy” HX = two week history of intermittent lethargy and anorexia, one episode of straining to defecate

3. 15 yr old MC DSH “Puddy”

4. RF –Both kidneys are small and irregularly shaped with the left being smaller than the right. –Multiple foci of mineralization are present in the renal pelvises bilaterally. –The colon contains a large amount of formed and solid appearing granular material and is at the upper limit of normal diameter in some areas. –Spondylosis is present at L6-7 and metallic structures are present in the inguinal ring. RD –Chronic renal disease –Constipation/obstipation is present

5. 8 yr old MC DSH HX = presented for weight loss, palpation reveals a possible abdominal mass

6. 8 yr old MC DSH

7. RF –The stomach is visible in both views as a collapsed soft-tissue structure. –In the lateral view the stomach is cranially displaced and the liver is well within the costal arch. –Both kidneys are considered small. –A large, irregular soft-tissue mass is present in the left cranioventral abdomen and in both views there is a tubular gas shadow within the mass. –Mineral material is present within the mass and the mass is displacing the colon to the right. –Small intestinal loops are fluid-filled and some are mildly distended. –There is focal loss of abdominal detail in the right cranial to mid abdomen in the VD and in the cranioventral abdomen in the lateral view. RD –Abdominal mass –Free abdominal fluid Next –Ultrasound and biopsy

8. 7 yr old FS Persian “Princess” HX = the owner notices she is spending a lot of time in her litterbox, she is straining but has not passed stool in 4 days

9. 7 yr old FS Persian “Princess”

10. RF –There is a large amount of solid-appearing fecal material in the colon that completely fills the colon. –The colon is approximately 2 times the length of L7 vertebral body. –A faint focal area of increased opacity seen ventral to L6 in the lateral view may be a “Bate’s Floater” which are necrotic fat bodies that undergo mineralization and are an incidental finding. –The kidneys are normal in size and shape. –The spleen is visible along the left lateral body wall and is normal. RD –Megacolon Next –Surgical Resection –Enema if not too severe

11. 1 yr old MC DSH “Bootsie” HX = presented for vomiting, anorexia, depression for one day, last night he vomited a penny

12. 1 yr old MC DSH “Bootsie”

13. RF –A rectangular shaped mineral structure is present within the mid-abdomen, near midline at the level of L2. –Small intestines are mostly fluid filled, larger than normal diameter, and appear to be bunched centrally. –On the VD view the SI appear corrugated along the right body wall. –The stomach has an abnormal appearance on the lateral view, being a bit displaced caudally and elevated it contains many air bubbles. RD –Enlarged small intestine, possible linear foreign body –Small intestine mineral foreign body –Possible low-grade ascites Next –Ultrasound –Surgical exploratory

14. 5 yr old FS DSH “Biddy” HX = 2 day history of anorexia and vomiting, she is depressed and dehydrated on physical exam

15. 5 yr old FS DSH “Biddy”

16. RF –Gas distended stomach. –Gas and fluid dilated SI, larger diameter than normal. –There is a back and forth bowel pattern, plication. –This plicated region is the duodenum on both views. –There is a transitional lumbosacral segment and spondylosis of this region. –Mild DJD of the hips. RD –Linear foreign body within the proximal small intestine –Possible gastric foreign body Next –Surgery

17. 5 mo old MC Mixed breed dog “Buster” HX = presented for history of vomiting and diarrhea for 4 days

18. 5 mo old MC Mixed breed dog “Buster”

19. RF –Nearly all of the small intestinal loops are fluid and gas distended beyond normal limits. –The colon is difficult to follow, regardless there are too many loops of distended bowel to be accounted for solely by the colon. –The stomach appears to be pushed cranially by the dilated SI. –The liver is mildly enlarged, extending beyond the costal arch. RD –Generalized distended SI Next –CBC –Parvo stool test –Abdominal ultrasound

20. 3 yr old M Dalmatian “Jake” HX = history of several days of vomiting

21. 3 yr old M Dalmatian “Jake”

22. RF –Gas distended loops of small intestine. –Plicated appearance of some of these SI loops. –Some SI loops contain “fecal-like” material, seen on both the VD and lateral views. RD –Partial SI obstruction Next –Surgery

23. 5 mo old F DSH “Marshmello” HX = presented because she ate a large screw ½ hour prior to presentation

24. 5 mo old F DSH “Marshmello”

27. RF –Large metallic foreign body in an otherwise ingesta filled stomach –Previously noted gastric foreign body is now in the small intestine, no evidence of dilation is seen. –Previously noted foreign body is now in the descending colon at the pelvic inlet. RD –Gastric foreign body that passed normally through GI tract Next –Monitor feces for passage, if not seen repeat radiographs