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Diagnostic ultrasound ( PDFDrive )

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CHAPTER 7 The Pancreas 223

26 mm

P

C

SMA

FIG. 7.22 Enlarged Pancreas, Acute Pancreatitis With Inlammation.

Transverse image of the pancreas shows 26-mm anteroposterior

dimension (calipers) at the level of the superior mesenteric artery (SMA).

Note the acute inlammation ventral to the pancreas (yellow arrow) and

ventral to (blue arrow) the splenic vein–superior mesenteric vein conluence

(C).

FIG. 7.23 Pseudopancreatitis. Longitudinal image of pancreas (P)

and liver shows that the fatty liver is more echogenic than the normal

pancreas, simulating a hypoechoic pancreas.

A

B

C

FIG. 7.24 Heterogeneous Pancreas, Acute Pancreatitis. (A)

Transverse image shows that heterogeneity can be a subtle, subjective

inding. Arrow indicates the perivascular inlammation and splenic

vein–superior mesenteric vein clot. (B) Transverse sonogram in a different

patient shows heterogeneous pancreatic echotexture with trace areas

of peripancreatic luid about the gland and interspersed between parenchymal

lobules (arrows). (C) Transverse contrast-enhanced computed

tomography (CT) image of the same patient in (B) shows corresponding

CT appearance of heterogeneous gland with peripancreatic luid.

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