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Zygomatic sialolithiasis diagnosed with computed tomography in a dog.

Lee N, Choi M, Keh S, Kim T, Kim H, Yoon J - J. Vet. Med. Sci. (2014)

Bottom Line: 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.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.The zygomatic gland and the cystic lesion were removed, and a zygomatic sialocele with sialolith and ductal obstruction were found by histopathological examination.

View Article: PubMed Central - PubMed

Affiliation: Haemaru Referral Animal Hospital, Seongnam-Si, Gyeonggi-do 463-050, Republic of Korea.

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.

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Histopathological (HE stain) results of the right zygomatic gland. (A) Extrusion of themucinous (arrows) from the salivary gland into the adjacent connective tissue. (B) Alarge mineralized structure (asterisk) occluding one of ductal cavity.
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fig_004: Histopathological (HE stain) results of the right zygomatic gland. (A) Extrusion of themucinous (arrows) from the salivary gland into the adjacent connective tissue. (B) Alarge mineralized structure (asterisk) occluding one of ductal cavity.

Mentions: The zygomatic gland and the cystic lesions were removed. Histopathological examination of thezygomatic gland showed extrusion of mucus from the salivary gland into the adjacent connectivetissue. In addition, there was a large mineralized structure occluding one of the ducts of thegland (Fig. 4Fig. 4.


Zygomatic sialolithiasis diagnosed with computed tomography in a dog.

Lee N, Choi M, Keh S, Kim T, Kim H, Yoon J - J. Vet. Med. Sci. (2014)

Histopathological (HE stain) results of the right zygomatic gland. (A) Extrusion of themucinous (arrows) from the salivary gland into the adjacent connective tissue. (B) Alarge mineralized structure (asterisk) occluding one of ductal cavity.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4221173&req=5

fig_004: Histopathological (HE stain) results of the right zygomatic gland. (A) Extrusion of themucinous (arrows) from the salivary gland into the adjacent connective tissue. (B) Alarge mineralized structure (asterisk) occluding one of ductal cavity.
Mentions: The zygomatic gland and the cystic lesions were removed. Histopathological examination of thezygomatic gland showed extrusion of mucus from the salivary gland into the adjacent connectivetissue. In addition, there was a large mineralized structure occluding one of the ducts of thegland (Fig. 4Fig. 4.

Bottom Line: 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.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.The zygomatic gland and the cystic lesion were removed, and a zygomatic sialocele with sialolith and ductal obstruction were found by histopathological examination.

View Article: PubMed Central - PubMed

Affiliation: Haemaru Referral Animal Hospital, Seongnam-Si, Gyeonggi-do 463-050, Republic of Korea.

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.

Show MeSH
Related in: MedlinePlus