Sialadenitis associated with periorbital disease in a dog

Submucosal sialadenitis was diagnosed on histologic examination of a biopsy specimen from a palatine swelling associated with acute, unilateral periorbital disease in a dog. Sialadenitis may have been the cause of periorbital disease or may have been part of a generalized inflammatory condition affecting the periorbital tissues. Corticosteroids were immediately effective in eliminating signs of periorbital disease and sialadenitis. A 3-month corticosteroid treatment was used because the sialadenitis and periorbital disease were immune-mediated. This dog has been free of recurring signs for more than 3 years.