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Clinical Problem Solving: Radiology
April 2013

Radiology Quiz Case 1: Diagnosis

Author Affiliations


JAMA Otolaryngol Head Neck Surg. 2013;139(4):420. doi:10.1001/jamaoto.2013.125b

Diagnosis: Juvenile recurrent parotitis (JRP).

Juvenile recurrent parotitis, also known as recurrent acute parotitis, is the most common childhood inflammatory salivary gland disease after mumps (paramyxovirus). Although the precise etiology of this disease remains unclear, several potential mechanisms have been proposed, including mumps, congenital ductal malformations, and allergic or autoimmune phenomena.1,2 Juvenile recurrent parotitis is typically unilateral, and, when bilateral, 1 side is usually dominant.3 The mean age at onset is 3 to 6 years, and most cases are self-limited, resolving prior to puberty.3 There is no clear sex predilection.1,4 The clinical spectrum of JRP varies dramatically from sporadic episodes of mild swelling to frequent painful attacks. Children may be prevented from attending school because of a presumptive misdiagnosis of mumps.

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