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Unilateral rostral mandibulectomy for gingival vascular hamartoma in two calves
Takeshi Tsuka1,*, Yoshiharu Okamoto1, Naoki Yamamoto2, Keiji Hayashi3, Takehito Morita1, Yuji Sunden1, Yusuke Murahata1, Kazuo Azuma1, Tomohiro Osaki1, Norihiko Ito1, Tomohiro Imagawa1
1Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Tottori University, Tottori University, 4-101, Koyama-Minami, Tottori, Tottori, 680-8553, Japan

2Shimane Prefectural Federation Agricultural Mutual Aid Association, 105, Tono-machi, Matsue, Shimane, 690-0887, Japan

3Tottori Prefectural Federation Agricultural Mutual Aid Association, 271, Higashizono, Hokuei, Tottori, 689-2202, Japan
Correspondence to: Tel: +81-857-31-5435; Fax: +81-857-31-5449; E-mail: tsuka@muses.tottori-u.ac.jp
Received: November 7, 2017; Revised: February 27, 2018; Accepted: March 3, 2018; Published online: March 6, 2018.
A 2-month-old female Holstein calf and a 5-month-old female Japanese black calf presented with a gingival vascular hamartoma located in the interdental space between the second and third mandibular incisors in the right and left mandibles, respectively. Osteolytic changes appeared within the mandibular bones adjacent to the masses on radiographic or computed tomographic images. The masses were removed along with affected mandibular bone by unilateral rostral mandibulectomy. Two cases exhibited a normal appetite and grew normally, with no cosmetic changes and recurrences. Unilateral rostral mandibulectomy should be applied for invasive gingival vascular hamartomas associated with osteolytic changes.
Keywords: calf, gingival vascular hamartoma, mandibular bone, osteolysis, unilateral rostral mandibulectomy

© 2018 The Korean Society of Veterinary Science.