Postenucleation orbital sialocele in a dog associated with prior parotid duct transposition.
An orbital sialocele developed in a dog following enucleation for protracted glaucoma. This eye had historically been treated for keratoconjunctivitis sicca by parotid duct transposition approximately 5 years previously, and the duct was ligated distally at the time of enucleation. One month following enucleation, the dog presented with a fluctuant conical-shaped swelling ventrolateral to the orbital socket. Surgical exploration revealed a dilated, fibrotic distal portion of the previously transposed parotid duct, and saliva, within the enucleated orbit. The distal portion of the duct and saliva-containing tissues from within the orbit were excised. The remaining proximal normal portion of the parotid duct was re-routed into the oral cavity. Clinicopathologic and histologic examination of the excised orbital contents and dilated portion of duct revealed a sterile sample of saliva and moderate chronic periductal fibrosis. At a 6-month re-evaluation there was no evidence of recurrence of the sialocele, and the parotid duct was functional.
Guinan
Justin
J
Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada C1A 4P3. jtguinan@yahoo.com
Willis
A Michelle
AM
Cullen
Cheryl L
CL
Walshaw
Richard
R
D000818:Animals; D003937:Diagnosis, Differential; D004283:Dog Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D004285:Dogs; D015353:Eye Enucleation / Q000009:adverse effects / Q000662:veterinary*; D005260:Female; D005901:Glaucoma / Q000150:complications / Q000601:surgery / Q000662:veterinary; D007638:Keratoconjunctivitis Sicca / Q000150:complications / Q000601:surgery / Q000662:veterinary; D009916:Orbital Diseases / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D010305:Parotid Diseases / Q000601:surgery*; D012465:Salivary Duct Calculi / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology