{"title":"犬原发性肝平滑肌肉瘤的影像学特征。","authors":"Osamu Sakai, Shin-Ichi Nakamura, Hinami Kodama, Sho Kadekaru, Akihiko Sugiyama, Ryohei Yoshitake, Kenji Kutara","doi":"10.1111/vru.70041","DOIUrl":null,"url":null,"abstract":"<p><p>A 13-year-old castrated male Shetland sheepdog presented with loss of appetite, jaundice, and lethargy. Abdominal ultrasonography revealed a hypoechoic mass in the midline of the liver relative to the normal liver parenchyma. CT revealed a hepatic mass with low attenuation (28 HU) on precontrast CT and peripheral contrast enhancement in all phases: arterial phase (93 HU), portal phase (102 HU), and delayed phase (86 HU). The mass size was 4.6 × 3.2 × 3.4 cm. Postmortem MRI findings showed that the hepatic mass had low and high signal intensities on T1 and T2-weighted images, respectively. Histopathological assessment revealed leiomyosarcoma based on morphological and immunohistochemical findings. No tumors other than those in the liver were found; therefore, a diagnosis of primary hepatic leiomyosarcoma was made.</p>","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"66 3","pages":"e70041"},"PeriodicalIF":1.3000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Imaging Characteristics of Primary Hepatic Leiomyosarcoma in a Dog.\",\"authors\":\"Osamu Sakai, Shin-Ichi Nakamura, Hinami Kodama, Sho Kadekaru, Akihiko Sugiyama, Ryohei Yoshitake, Kenji Kutara\",\"doi\":\"10.1111/vru.70041\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>A 13-year-old castrated male Shetland sheepdog presented with loss of appetite, jaundice, and lethargy. Abdominal ultrasonography revealed a hypoechoic mass in the midline of the liver relative to the normal liver parenchyma. CT revealed a hepatic mass with low attenuation (28 HU) on precontrast CT and peripheral contrast enhancement in all phases: arterial phase (93 HU), portal phase (102 HU), and delayed phase (86 HU). The mass size was 4.6 × 3.2 × 3.4 cm. Postmortem MRI findings showed that the hepatic mass had low and high signal intensities on T1 and T2-weighted images, respectively. Histopathological assessment revealed leiomyosarcoma based on morphological and immunohistochemical findings. No tumors other than those in the liver were found; therefore, a diagnosis of primary hepatic leiomyosarcoma was made.</p>\",\"PeriodicalId\":23581,\"journal\":{\"name\":\"Veterinary Radiology & Ultrasound\",\"volume\":\"66 3\",\"pages\":\"e70041\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2025-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Veterinary Radiology & Ultrasound\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1111/vru.70041\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"VETERINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Veterinary Radiology & Ultrasound","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1111/vru.70041","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
Imaging Characteristics of Primary Hepatic Leiomyosarcoma in a Dog.
A 13-year-old castrated male Shetland sheepdog presented with loss of appetite, jaundice, and lethargy. Abdominal ultrasonography revealed a hypoechoic mass in the midline of the liver relative to the normal liver parenchyma. CT revealed a hepatic mass with low attenuation (28 HU) on precontrast CT and peripheral contrast enhancement in all phases: arterial phase (93 HU), portal phase (102 HU), and delayed phase (86 HU). The mass size was 4.6 × 3.2 × 3.4 cm. Postmortem MRI findings showed that the hepatic mass had low and high signal intensities on T1 and T2-weighted images, respectively. Histopathological assessment revealed leiomyosarcoma based on morphological and immunohistochemical findings. No tumors other than those in the liver were found; therefore, a diagnosis of primary hepatic leiomyosarcoma was made.
期刊介绍：
Veterinary Radiology & Ultrasound is a bimonthly, international, peer-reviewed, research journal devoted to the fields of veterinary diagnostic imaging and radiation oncology. Established in 1958, it is owned by the American College of Veterinary Radiology and is also the official journal for six affiliate veterinary organizations. Veterinary Radiology & Ultrasound is represented on the International Committee of Medical Journal Editors, World Association of Medical Editors, and Committee on Publication Ethics.
The mission of Veterinary Radiology & Ultrasound is to serve as a leading resource for high quality articles that advance scientific knowledge and standards of clinical practice in the areas of veterinary diagnostic radiology, computed tomography, magnetic resonance imaging, ultrasonography, nuclear imaging, radiation oncology, and interventional radiology. Manuscript types include original investigations, imaging diagnosis reports, review articles, editorials and letters to the Editor. Acceptance criteria include originality, significance, quality, reader interest, composition and adherence to author guidelines.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
