What is mumps disease?
A viral infection of the salivary glands caused by the mumps virus.
What are some of the classical sonographic features in acute mumps disease/ viral infection?
. Bilaterally enlarged parotids and submandibular glands, . Hypervascularity on color Doppler interrogation, . Heterogeneous parenchyma (with either hyper or hypo-reflectivity), . Enlarged intra-parotids or cervical triangles chain nodes (mostly levels Ia, Ib, IIa, IIB etc).
Globularly enlarged, heterogeneous and hypervascular bilateral submandibular glands and the parotids however with patent, non-dilated Wharton's and the Stensen's ducts.
Multiple enlarged lymph nodes that maintain their central echogenic stromal fats are noted at the sub-mental region (levels IA & 1B), at the submandibular chains (levels IIA & IIB) and in the intra-parotid gland parenchyma, which are likely reactive. Two conspicuous rounded lesions (located at the left lateral neck; < 2cm in diameters each) with homogeneously echoic reflectivity but with mild eccentric foci shadowing are noted suggesting mature teratomatous nodules containing sebum and subtle hair plug compositions.