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Quiz 5

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Case information
Chief complaint A 1.5-year-old boy was referred to a paediatric surgeon with a 3-month history of left submandibular mass. The kid is playful with no constitutional symptoms. On physical examination, there was a ~3cm soft, non-tender and mobile mass at left submandibular region. The surgeon requested a contrast-enhanced MR scan for further evaluation.
Age 1.5 year
Sex Male
Modality MRI
System Head and Neck
Case contributor
Dr. Milly Chiu

Hong Kong Children's Hospital

Dr.Kevin Fung

Hong Kong Children's Hospital

What is the diagnosis? What is the next best investigation for confirmation?