title: Lipomatosis of the canine parotid gland: case report with a literature review.
abstract: In this report, we describe a case of lipomatosis in the left parotid gland of an eight-year-old female Shetland sheepdog and review the relevant literature. Preoperative diagnosis of lipomatosis with Tru-Cut biopsy presented difficulties in this case. The postoperative diagnosis was based on the gross appearance of a non-infiltrative, circumscribed swollen mass in the parotid gland and the histological appearance of normal adipocytes that infiltrated into the parotid gland without involving surrounding structures. Additionally, flotation of the whole parotid gland in formalin solution together with well-maintained residual lobulation and a well-maintained configuration on the cut surface were identified as subsidiary characteristics of lipomatosis of the parotid gland. Lipomatosis of the parotid gland has been rarely reported in dogs and is a poorly understood condition.
authors.affiliation: Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan.
authors.forename: Hiroo
authors.initials: H
authors.lastname: Madarame
authors.affiliation: Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan.
authors.forename: Ryuuji
authors.initials: R
authors.lastname: Harada
authors.affiliation: Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan.
authors.forename: Shinpei
authors.initials: S
authors.lastname: Kawarai
authors.affiliation: Veterinary Teaching Hospital, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5201, Japan.
authors.forename: Haruo
authors.initials: H
authors.lastname: Takeda
authors.affiliation: Laboratory of Radiology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo, Sagamihara, Kanagawa252-5201, Japan.
authors.forename: Takuo
authors.initials: T
authors.lastname: Shida
keywords: dog; lipomatosis; parotid gland