Department of Diagnostic Imaging (Kim, Le Roux) and Department of Internal Medicine (Etedali), Schwarzman Animal Medical Center, 510 East 62nd Street, New York, New York 10065, USA; IDEXX Reference Laboratories, Inc., North Grafton, Massachusetts 01536, USA (Carroll).
Can Vet J. 2022 Sep;63(9):953-956.
A 13-year-old Maltese dog was presented for inspiratory stertor. A computed tomography evaluation was performed and revealed an osteoproductive lesion primarily centered over the frontal bone with infiltration of the adjacent maxillary and nasal bones, focal intracranial invasion, and an associated broad-based, contrastenhancing, extra-axial lesion along the longitudinal cerebral fissure. Rhinoscopic and incisional biopsies of the paranasal mass were obtained, and a meningioma was diagnosed histologically. Based on the imaging features and histopathology results, an extracranial paranasal sinus meningioma was diagnosed in this dog. To the authors' knowledge, this is the first case report describing the computed tomographic findings associated with a secondary extracranial paranasal sinus meningioma in a dog. Key clinical message: Meningiomas in dogs can be present outside of the brain case and should be considered a differential for tumors of the paranasal sinuses.
一只 13 岁的马耳他犬因吸气喘鸣而就诊。进行了计算机断层扫描评估，结果显示主要集中在前颅骨上的骨形成性病变，伴有相邻上颌骨和鼻骨的浸润、局灶性颅内侵犯以及沿着大脑纵向裂的相关宽基底、增强对比、颅外病变。对鼻旁肿块进行了鼻内窥镜和切开活检，组织病理学诊断为脑膜瘤。根据影像学特征和组织病理学结果，诊断该犬患有颅外鼻旁窦脑膜瘤。据作者所知，这是首例描述与犬继发性颅外鼻旁窦脑膜瘤相关的计算机断层扫描结果的病例报告。关键临床信息：犬的脑膜瘤可能存在于颅骨外，应将其视为鼻窦肿瘤的鉴别诊断。
