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1. Annular pancreas

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Figure 42-1

Annular pancreas.

A. An oblique image shows circumferential narrowing of the barium-opacified second portion of the duodenum (arrows). The duodenal bulb is slightly dilated. B. MR confirms the presence of pancreas (large arrows) surrounding the relatively hyperintense collapsed duodenum (small arrow).

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2. Pancreas divisum

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Figure 42-2

Pancreas divisum.

A. An axial T2-weighted image of a 9-year-old child shows 2 ducts (arrows) in the head of the pancreas. B. The anterior duct (Santorini) (arrow) drains the majority of the pancreas and extends toward the minor papilla. The smaller duct (arrow) in the posterior aspect of the pancreatic head is the duct of Wirsung; this drains via the major papilla.

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3. Cystic fibrosis

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Figure 42-3

Cystic fibrosis.

Contrast-enhanced CT of an 18-year-old patient with cystic fibrosis demonstrates multiple calcifications within a moderately atrophic pancreas (arrows).

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4. Cystic fibrosis

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Figure 42-4

Cystic fibrosis.

A transverse sonographic image of an 11-year-old child with cystic fibrosis demonstrates an abnormally echogenic pancreas and a coarse echo pattern.

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5. Cystic fibrosis

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Figure 42-5

Cystic fibrosis.

Extensive fatty infiltration of the pancreas results in marked hypoattenuation (arrows) on this contrast-enhanced CT image.

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6. Cystic fibrosis

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Figure 42-6

Cystic fibrosis.

A T2-weighted MR image demonstrates atrophy and ductal ectasia of the pancreas.

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7. Pancreatic cyst

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Figure 42-7

Pancreatic cyst.

There is an oval cyst in the head of the pancreas. The cyst is homogeneously hyperintense on this fat-suppressed T2-weighted MR image. The remainder of the pancreas is normal. There is no ductal dilation.

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8. Cystic dysplasia

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Figure 42-8

Cystic dysplasia.

There is a mass composed of multiple small cysts in the head of the pancreas (arrow) on this contrast-enhanced T1-weighted MR image. This 3-year-old child presented with manifestations of obstructive cholestasis.

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9. Acute pancreatitis

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Figure 42-9

Acute pancreatitis.

CT of an 11-year-old boy shows enlargement and slight hypoattenuation (edema) of the pancreas. There is ...

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