COMPUTED TOMOGRAPHIC FINDINGS IN 24 DOGS WITH LIPOSARCOMA
| Autor: | Jason A. Fuerst, Justin M. Goggin, Stacie Aarsvold, David S. Biller, Eli B. Cohen, Jean K. Reichle, John F. Griffin, David Szabo, Susan E. Emerson |
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| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
General Veterinary Focus (geometry) 040301 veterinary sciences business.industry Capsule 04 agricultural and veterinary sciences Liposarcoma medicine.disease Computed tomographic body regions 0403 veterinary science 03 medical and health sciences Contrast medium 0302 clinical medicine Precontrast 030220 oncology & carcinogenesis Hounsfield scale Medicine Radiology Differential diagnosis business Nuclear medicine |
| Zdroj: | Veterinary Radiology & Ultrasound. 58:23-28 |
| ISSN: | 1058-8183 |
| DOI: | 10.1111/vru.12436 |
| Popis: | Computed tomography (CT) continues to become more widely available for assessment of tumors in dogs, yet there are no studies describing the CT appearance of canine liposarcomas. In this retrospective, multicenter study, CT images of dogs with histologically confirmed liposarcomas were reviewed for size, location, attenuation, contrast enhancement, border definition, internal homogeneity, local infiltration, and mineralization. A total of 24 dogs with 26 liposarcomas were sampled. Mean attenuation was +15.2 (SD = 22.3) Hounsfield units (HU) with a range of -36 to +47.5 HU based on representative regions of interest. Twenty tumors (77%) contained focal areas of fat attenuation. All masses enhanced with contrast medium administration, which is distinct from what has been reported previously in infiltrative lipomas. Other CT features associated with canine liposarcomas included heterogeneous internal attenuation (81%) and lack of a clearly defined capsule (38%) suggesting infiltration of local structures. Six tumors (23%) had foci of mineralization. Findings from the current study indicated that liposarcoma should be considered as a differential diagnosis for mixed-attenuation, contrast-enhancing masses in dogs that contain at least one focus of fat attenuation on precontrast images; however, presence of foci of fat attenuation was not a necessary finding for the diagnosis of canine liposarcoma. |
| Databáze: | OpenAIRE |
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