Case Description—A 10-year-old sexually intact female dog was examined because of a static, well-circumscribed subcutaneous mass and associated fistulous draining tract located along the right ventrolateral aspect of the thoracic body wall of 15 months' duration.
Clinical Findings—Results of computed tomography and fistulography confirmed the presence of the fistulous tract. Computed tomography also revealed a focal, hypodense region in the right ventral portion of the liver that was adjacent to but not clearly associated with the fistulous tract.
Treatment and Outcome—Surgical exploration of the tract revealed that it passed into the right hemithorax to the diaphragm; entered the right medial lobe of the liver; and terminated in a well-encapsulated, cystic liver lesion. The right medial liver lobe and all affected tissues were removed. Histologically, the liver lesion consisted of a fibrotic, dilated bile duct. The dilated bile duct and fistula were lined with biliary epithelium. On the basis of these findings, a diagnosis of spontaneous external biliary fistula was made. Five months after surgery, the dog was clinically normal.
Clinical Relevance—To the authors' knowledge, spontaneous external biliary fistula in a dog has not been reported in the veterinary medical literature. Despite the rarity of this condition, it should be considered in a dog with similar clinical findings. Clinical findings and results of appropriate diagnostic imaging procedures may provide valuable information in making this diagnosis and in planning surgical treatment.
Objective—To evaluate the quality of information
regarding osteoarthritis (OA) in dogs currently available
on the World Wide Web.
Procedure—5 search engines were searched with
the keywords "dog," "degenerative joint disease,"
"canine," and "osteoarthritis," and the first 50 sites
listed by each search engine were analyzed. Unique
Web site addresses were distributed to 3 diplomates
of the American College of Veterinary Surgeons, who
provided a standardized evaluation of each site.
Results—30 unique Web sites were evaluated.
Twenty (66%) provided information consistent with
conventional knowledge as outlined in textbooks and
peer-reviewed literature, 8 (27%) provided experimental
or anecdotal information in addition to conventional
knowledge, and 2 (7%) provided misleading information.
Mean scores for overall usefulness of the information
provided in regard to clinical features of and
treatment for OA were 1.3 and 1.5, respectively (1 =
information of minimal use; 5 = very useful information).
Twenty-three (77%) sites encouraged pet owners
to seek the advice of a veterinarian. Twenty-three
(77%) sites were given overall quality scores < 2, and
7 (23%) were given scores between 2 and 3 (1 = site
was counterproductive; 5 = site was very valuable).
Conclusions and Clinical Relevance—Results suggest
that the quality of information currently available
on the Web that addresses OA in dogs is questionable.
Although most of the sites conveyed some conventional
information with reasonable accuracy, the
information was incomplete, of minimal use, and
often considered counterproductive. (J Am Vet Med