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Chapter 30

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1. Macroglossia

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Figure 30-1

Macroglossia.

A sagittal T1-weighted MR image of a child with BeckwithWiedemann syndrome demonstrates marked enlargement of an otherwise normal-appearing tongue.

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2. Lymphatic malformation of the tongue

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Figure 30-2

Lymphatic malformation of the tongue.

There is marked enlargement of the tongue in this infant with a lymphatic malformation.

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3. Normal tongue

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Figure 30-3

Normal tongue.

The tongue of this 11-year-old child appears as a soft tissue density (arrow) along the anterior aspect of the hypopharynx.

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4. Lingual ectopic thyroid

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Figure 30-4

Lingual ectopic thyroid.

A left lateral 99mtechnetium pertechnetate scintigraphic image of the neck and face (A = anterior) demonstrates an intense focus at the base of the tongue. There is no appreciable orthotopic thyroid activity at the base of the neck.

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5. Tracheomalacia

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Figure 30-5

Tracheomalacia.

A lateral chest radiograph of a 2-month-old infant with expiratory stridor shows diffuse tracheal collapse.

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6. Tracheal stenosis

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Figure 30-6

Tracheal stenosis.

A lateral neck radiograph of a child with stridor and a history of prior prolonged endotracheal intubation shows an irregular soft tissue density along the posterior wall of the subglottic trachea, due to a granuloma.

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7. Double aortic arch and tracheal stenosis

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Figure 30-7

Double aortic arch and tracheal stenosis.

A. There is leftward deviation of the trachea (arrow), but no narrowing of the lateral walls. B. Impressions by the right aortic arch and the more inferiorly located left arch cause a "reverse S" appearance of the esophagus on this AP view. C. On the lateral projection, narrowing of the AP dimension of the trachea occurs at the same level as a posterior esophageal impression.

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8. Internal laryngocele

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Figure 30-8

Internal laryngocele.

A reformatted coronal CT image shows an air-filled laryngeal cyst (arrow) that projects into the airway lumen.

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9. Congenital laryngeal cyst (ductal vallecular cyst)

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Figure 30-9

Congenital laryngeal cyst (ductal vallecular cyst).

A midline sagittal contrast-enhanced CT image shows a cyst at the base of the tongue (arrows). ...

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