title: Zygomatic sialolithiasis diagnosed with computed tomography in a dog.
abstract: A 10-year-old castrated Shih-Tzu male dog was referred for examination of acute right exophthalmos, protrusion of the third eyelid and soft tissue swelling ventral to the globe. Ultrasonography revealed echogenic fluid around the right globe. Computed tomography (CT) showed an enlarged right zygomatic salivary gland compared with the left zygomatic gland and an amorphous cystic mass ventral to the right globe. Hyperdense material, which we suspected to be a sialolith, was identified in the right zygomatic gland. The zygomatic gland and the cystic lesion were removed, and a zygomatic sialocele with sialolith and ductal obstruction were found by histopathological examination. CT was a useful diagnostic tool for zygomatic sialolithiasis.
authors.affiliation: Haemaru Referral Animal Hospital, Seongnam-Si, Gyeonggi-do 463-050, Republic of Korea.
authors.forename: Namsoon
authors.initials: N
authors.lastname: Lee
authors.forename: Mihyun
authors.initials: M
authors.lastname: Choi
authors.forename: Seoyeon
authors.initials: S
authors.lastname: Keh
authors.forename: Taehyun
authors.initials: T
authors.lastname: Kim
authors.forename: Hyunwook
authors.initials: H
authors.lastname: Kim
authors.forename: Junghee
authors.initials: J
authors.lastname: Yoon
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D004285:Dogs; D008297:Male; D015494:Salivary Gland Calculi / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery / Q000662:veterinary*; D014057:Tomography, X-Ray Computed / Q000662:veterinary*