3. • Fig. 20.1 Compression paddle. The patient lies
prone on the paddle and the balloon is
inflated to compress overlying small-bowel
loops during fluoroscopy.
6. • Fig. 20.4 Non-ionic, water-soluble follow-
through performed using iohexol in a
postoperative patient.
7. • Fig. 20.5 Plain
abdominal film
reveals a dilated
jejunal loop in this
patient with
obstruction secondary
to an internal hernia
(note residual
contrast in the
appendix from recent
barium enema).
8. • Fig. 20.6 CT shows unequivocal small bowel
obstruction.
9. • Fig. 20.7 Multislice CT with reconstruction shows no
mass at the transition point between dilated (curve
arrow) and undilated (straight arrow) small bowel.
Diagnosis: adhesions, confirmed at subsequent
laparotomy.
10. • Fig. 20.8 Barium follow-through in a patient with
adhesions. There is an abrupt transition point from
dilated to undilated small bowel in this patient with
obstruction to the afferent limb of an ileoanal pouch.
15. • Fig. 20.13 Crohn's disease. Compression of an
ileal loop reveals several aphthous ulcers (one
of which is arrowed). Also note the
background granularity caused by villous
oedema.
16. • Fig. 20.14 Advanced Crohn's disease
evidenced by several, long 'cobblestone‘
segments with intervening dilatation.
17. • Fig. 20.15 Advanced Crohn's disease with
several characteristic pseudodiverticula
(arrows).
18. • Fig. 20.16 Crohn's disease. Neoterminal ileal
recurrence at right hemicolectomy site.
19. • Fig. 20.17 Crohn's disease. CT reveals a
parastomal hernia when the patient is in the
right lateral position.
20. • Fig. 20.18 Crohn's disease. Normal Kock
pouch.
21. • Fig. 20.19 Crohn's disease. Ultrasound reveals
gross mural thickening in an ileal loop.
22. • Fig. 20.20 Crohn's disease. CT shows the
extent of terminal ileal thickening (arrows).
23. • Fig. 20.21 Crohn's disease. Fat suppressed T2-
weighed MR scan shows thickened ileal loops
(curved arrows) and also reveals a parastomal
abscess (straight arrow).
24. • Fig. 20.22 Benign stromal tumour. (A) Barium
follow-through reveals an intraluminal mass
(arrow) on compression. (B) The tumour is
also visible on CT (arrow).
28. • Fig. 20.26 CT reveals a desmoplastic reaction
in a patient with carcinoid tumour.
29. • Fig. 20.27 CT reveals a large pelvic soft-tissue
mass that proved to be recurrent stromal
tumour.
30. Fig. 20.28 Duodenal adenomas (some of which
are arrowed) complicating familial
adenomatous polyposis.
31. • Fig. 20.29 Familial adenomatous polyposis.
T2 -weighted MR image of a mesenteric
desmoid tumour (arrows).
32. • Fig. 20.30 Barium follow-through reveals an
ileal hamartoma (arrow) in Peutz-Jeghers
syndrome.
33. • Fig. 20.31 Barium follow-through in a patient
with extensive radiation enteritis reveals
strictures, dilatation and a 'picket-fence'
appearance (arrows).
34. • Fig. 20.32 Gross intramural jejunal
haemorrhage revealed by CT in a young man
taking oral anticoagulants.
35. • Fig. 20.33 Small-bowel thickening, causing a
'target' sign, in a young woman with Henoch-
Schönlein purpura (arrows).
36. • Fig. 20.34 Barium follow-through reveals a
large Meckel's diverticulum (arrows).
38. • Fig. 20.36 Plain film showing pneumatosis
intestinalis evidenced by (arrows). innumerable
air-filled cysts.
39. • Fig. 20.37 Peritoneal attachments and potential spaces
when viewed from the front (A) and side (B); (A) also
demonstrates likely pathways for pathological spread.
40. • Fig. 20.37 Peritoneal attachments and
potential spaces when viewed from the front
(A) and side (B); (A) also demonstrates likely
pathways for pathological spread.
41. • Fig. 20.38 CT reveals deposits on the liver
surface (arrow) in this patient with ovarian
carcinoma (note splenic ascites).
42. • Fig. 20.39 Contrast-enhanced CT reveals
plaques of high-attenuation peritoneal
deposits in a patient with disseminated
colorectal adenocarcinoma.
43. • Fig. 20.40 CT reveals the liver scalloping
typical of pseudomyxoma.