The first report of the ante-mortem diagnosis of Ollulanus tricuspis infection in two dogs

• Published in: Journal of Veterinary Medical Science Vol. 77; no. 11; pp. 1499 - 1502
• Main Authors: KATO, Daiki, OISHI, Mariko, OHNO, Koichi, NAKASHIMA, Ko, WADA, Atsuhito, MORITA, Tatsushi, IMAI, Soichi, TSUBOI, Masaya, CHAMBERS, James K., UCHIDA, Kazuyuki, TSUJIMOTO, Hajime
• Format: Journal Article
• Language: English
• Published: Japan JAPANESE SOCIETY OF VETERINARY SCIENCE 01.11.2015; Japan Science and Technology Agency; The Japanese Society of Veterinary Science
• Subjects: Animals; Anthelmintics - therapeutic use; canine; Dog Diseases - drug therapy; Dog Diseases - parasitology; Dogs; Female; gastritis; Internal Medicine; Male; Nematoda - classification; Nematoda - isolation & purification; nematode; Nematode Infections - drug therapy; Nematode Infections - parasitology; Nematode Infections - veterinary; Ollulanus tricuspis; vomiting
• ISSN: 0916-7250; 1347-7439; 1347-7439
• DOI: 10.1292/jvms.15-0158

Ollulanus tricuspis is a small nematode parasite of the stomach, and its infection has been reported worldwide in cats but only one report in dogs as post-mortem diagnosis. Two dogs, kept in the Tokyo area, were presented for chronic vomiting. Chronic gastritis was diagnosed histologically, and many nematodes were detected in endoscopically-biopsied gastric samples and in the mucus of vomitus in both dogs. The parasites were small (<1 mm), and their morphological characteristics were consistent with those previously reported for O. tricuspis. The symptoms in one dog completely disappeared after anthelmintic therapy. To our knowledge, this is the first report describing ante-mortem diagnosis of spontaneous gastric O. tricuspis infection in dogs in which infectivity and pathogenicity of the nematode are suggested.