Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, Indiana, USA.
Environmental and Radiological Health Sciences Department, College of Veterinary Medicine and Biomedical Sciences, Fort Collins, Colorado, USA.
Vet Radiol Ultrasound. 2022 Jan;63(1):30-37. doi: 10.1111/vru.13022. Epub 2021 Sep 28.
Published findings on the computed tomographic (CT) appearance of sialoceles are limited to brief descriptions from reported cases in eight dogs and one cat. The authors have seen sialoceles with CT characteristics that are not consistent with these previous reports. The purpose of this multicenter, retrospective, descriptive, case series study was to provide more detailed descriptions of the CT appearance of confirmed sialoceles in dogs. Dogs over a 10-year period with cytologically or histologically confirmed sialoceles and pre- and postcontrast CT studies of the head were included. Multiple qualitative and quantitative features were described for each sialocele with histological correlation. Twelve dogs with a total of 13 sialoceles were identified, including: seven cervical sialoceles, three complex (combined cervical and sublingual) sialoceles, two sublingual sialoceles, and one zygomatic sialocele. All sialoceles were characterized by fluid attenuating, non-contrast enhancing contents (median 18.5 HU) and soft tissue attenuating, contrast-enhancing walls. The external margins of all sialocele walls were smooth; however, the internal margins in six sialoceles were irregular with poorly defined nodular to frond-like protrusions. Mineralized foci of variable size (range < 1 mm to 4.8 mm) and attenuation (range 119 to 1253 HU) were present in seven sialoceles and histologically identified as sialoliths (three sialoceles) and osseous metaplasia (two sialoceles). A unique finding in the sialoceles in this study was the presence of intraluminal nodular to frond-like protrusions arising from the wall. This study also reports the CT appearance of cervical and complex sialoceles and sialocele mineralizations.
已发表的关于唾液囊肿的计算机断层扫描 (CT) 表现的研究结果仅限于在 8 只狗和 1 只猫的病例报告中进行的简要描述。作者观察到的唾液囊肿的 CT 特征与这些先前的报告不一致。本研究为多中心、回顾性、描述性病例系列研究，旨在提供更多关于狗的已确认唾液囊肿的 CT 表现的详细描述。纳入了 10 年间经细胞学或组织学证实的唾液囊肿且进行了头部对比前和对比后的 CT 检查的犬。对每个唾液囊肿的多个定性和定量特征进行了描述，并与组织学相关联。共确定了 12 只具有总共有 13 个唾液囊肿的犬，包括：7 个颈部唾液囊肿，3 个复杂（颈部和舌下联合）唾液囊肿，2 个舌下唾液囊肿和 1 个颧骨唾液囊肿。所有唾液囊肿均表现为液体衰减、无对比增强内容物（中位数 18.5 HU）和软组织衰减、对比增强壁。所有唾液囊肿壁的外部边缘均光滑；然而，在 6 个唾液囊肿中，内部边缘不规则，呈不明确的结节状至扇形突起。7 个唾液囊肿中存在大小不等（范围<1 毫米至 4.8 毫米）和衰减（范围 119 至 1253 HU）的矿化灶，组织学上鉴定为唾液石（3 个唾液囊肿）和骨化生（2 个唾液囊肿）。本研究中唾液囊肿的一个独特发现是存在源自壁的管腔内结节状至扇形突起。本研究还报告了颈部和复杂唾液囊肿以及唾液囊肿矿化的 CT 表现。
