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1. Acute bacterial sialadenitis

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Figure 31-1

Acute bacterial sialadenitis.

CT shows marked enlargement of the left parotid gland (arrow). There is abnormal increased attenuation, such that the inflamed parotid gland is nearly isoattenuating to the adjacent masseter muscle.

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2. Acute bacterial sialadenitis

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Figure 31-2

Acute bacterial sialadenitis.

The right parotid gland is enlarged on this contrast-enhanced CT of a 4-year-old child with a 2-day history of right cheek swelling, pain, and fever. There is prominent contrast enhancement. Scattered microabscesses appear as hypoattenuating foci. There are slightly enlarged lymph nodes dorsal to the infected parotid gland.

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3. Recurrent parotitis

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Figure 31-3

Recurrent parotitis.

Sialography of a 5-year-old child with recurrent episodes of parotid gland swelling and pain shows multiple small contrast filled cavities within the gland, that is, sialectasis. The ducts are normal in caliber.

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4. Recurrent parotitis of childhood

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Figure 31-4

Recurrent parotitis of childhood.

Sonography of a 5-year-old child during an episode of acute symptoms shows multiple hypoechoic foci in an enlarged left parotid gland.

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5. Recurrent parotitis

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Figure 31-5

Recurrent parotitis.

Contrast-enhanced CT shows enlargement and prominent, heterogeneous enhancement of the right parotid gland. There is no abscess or ductal dilation.

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6. Sialectasis

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Figure 31-6

Sialectasis.

Parotid gland sialography demonstrates multiple small globular contrast collections within the gland. The peripheral ducts are irregular and thin. The Stensen duct is normal.

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7. Sialolithiasis

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Figure 31-7

Sialolithiasis.

A lateral radiograph of a 10-year-old child demonstrates a small oval submandibular calculus (arrow).

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8. Sialolithiasis

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Figure 31-8

Sialolithiasis.

There is a small round calculus (arrow) in the right submandibular gland of an asymptomatic 15-year-old.

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9. Parotid gland air insufflation

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Figure 31-9

Parotid gland air insufflation.

This is a teenager with a history of episodic nonpainful cheek swelling. There is air in the parotid gland ducts on this contrast-enhanced CT image obtained while the patient closed his lips and blew air into the buccal spaces.

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