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Clinical Challenge | Radiology

Left Parotid Gland Swelling in an Infant QUIZ

Kenny F. Lin, MD1; Marc A. Cohen, MD1; Vikash K. Modi, MD1
[+] Author Affiliations
1Department of Otorhinolaryngology–Head and Neck Surgery, Weill Cornell Medical College, New York, New York
JAMA Otolaryngol Head Neck Surg. 2015;141(8):765-766. doi:10.1001/jamaoto.2015.0963.
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An MRI of an infant with a 2-month history of an enlarging left preauricular swelling showed a mass with a well-defined capsule arising within the superficial left parotid gland. The mass was largely of fat signal intensity on both T1- and T2-weighted sequences. What is the diagnosis?

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Magnetic resonance images of a patient with a left preauricular mass of the superficial parotid lobe.

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