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Parotid gland enlargement

Changed by Yusra Sheikh, 26 Aug 2021

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Parotid enlargement (also known as parotidomegaly) has a wide differential given the significant breadth of pathology that can affect the parotid gland. These can be separated by the standard surgical sieve approach into infective, inflammatory, immune, neoplastic, infiltrative, and congenital causes.

Differential diagnosis

Infection

cat-scratch fever
HIV parotitis
mumps
parotid abscess secondary to acute bacterial sialadenitis (acute parotitis)
syphilis
tuberculosis

Inflammatory

Immune-mediated

Mikulicz syndrome
Sjogren syndrome (myoepithelial sialadenitis)

Miscellaneous

Neoplastic

Congenital

first branchial cleft cyst

~~-<li><a title="acinic cell carcinoma" href="/articles/acinic-cell-carcinoma-salivary-glands">acinic cell carcinoma</a></li>~~
+<li><a href="/articles/acinic-cell-carcinoma-salivary-glands">acinic cell carcinoma</a></li>

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~~Case 3: parotid lipoma~~

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Image 1 CT (C+ arterial phase) ( update )

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Case 21: parotid lipoma

Image 2 CT (C+ arterial phase) ( update )

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Case 42: parotid lymphoepithelial cyst

Image 3 CT (non-contrast) ( update )

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Case 53: parotid lipoma

Image 4 CT (C+ arterial phase) ( update )

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Case 64: acute parotitis

Image 5 CT (C+ arterial phase) ( update )

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Case 75: parotid gland lymphoma - bilateral

Image 6 CT (C+ delayed) ( update )

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Case 86: parotid gland abscess

Image 7 CT (C+ portal venous phase) ( update )

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Case 97: acute parotitis

Image 8 CT (C+ delayed) ( update )

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Case 108: sarcoidosis

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