CT characteristics of primary splenic torsion in eight dogs. 2020

Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
Department of Veterinary Medicine, Queen's Veterinary School Hospital, Cambridge, UK.

Splenic torsion is a rare potentially life-threatening condition characterized by rotation of the spleen around the gastrosplenic and phrenosplenic ligaments leading to occlusion of venous drainage and arterial supply. This retrospective study describes the CT characteristics for dogs with surgically confirmed splenic torsion from 2013 to 2018 using the submissions to a large multinational teleradiology database. Eight dogs had the splenic torsion confirmed with surgery. Seven of eight cases had histology confirming congestion, hemorrhage, and necrosis, and one had concurrent myelolipoma infiltration. The CT characteristics included an enlarged (8/8), rounded (7/8), folded C-shaped spleen (8/8) with a difference of median parenchymal attenuation between pre- and postcontrast of +1.15 HU (Hounsfield units). Other common features included a mainly homogeneous parenchyma on pre- and post-contrast images (6/8), lack of subjective and objective vascular and parenchymal contrast enhancement (6/8) and free peritoneal fluid (6/8). A "whirl sign" was seen in the majority of cases (7/8) alongside a strongly hyperattenuating center (95-416 HU) on the precontrast images (5/7), which has not been previously described in the veterinary literature. Gastric position was normal in all cases. More variable CT characteristics of the confirmed torsions were attributable to suspected partial torsion and myelolipomatous infiltration. Overall, primary splenic torsion confirmed with surgery showed consistent characteristics on CT.

UI MeSH Term Description Entries
D008297 Male Males
D004283 Dog Diseases Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used. Canine Diseases,Canine Disease,Disease, Canine,Disease, Dog,Diseases, Canine,Diseases, Dog,Dog Disease
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D013158 Splenic Diseases Diseases involving the SPLEEN. Disease, Splenic,Diseases, Splenic,Splenic Disease
D014057 Tomography, X-Ray Computed Tomography using x-ray transmission and a computer algorithm to reconstruct the image. CAT Scan, X-Ray,CT Scan, X-Ray,Cine-CT,Computerized Tomography, X-Ray,Electron Beam Computed Tomography,Tomodensitometry,Tomography, Transmission Computed,X-Ray Tomography, Computed,CAT Scan, X Ray,CT X Ray,Computed Tomography, X-Ray,Computed X Ray Tomography,Computerized Tomography, X Ray,Electron Beam Tomography,Tomography, X Ray Computed,Tomography, X-Ray Computer Assisted,Tomography, X-Ray Computerized,Tomography, X-Ray Computerized Axial,Tomography, Xray Computed,X Ray Computerized Tomography,X Ray Tomography, Computed,X-Ray Computer Assisted Tomography,X-Ray Computerized Axial Tomography,Beam Tomography, Electron,CAT Scans, X-Ray,CT Scan, X Ray,CT Scans, X-Ray,CT X Rays,Cine CT,Computed Tomography, Transmission,Computed Tomography, X Ray,Computed Tomography, Xray,Computed X-Ray Tomography,Scan, X-Ray CAT,Scan, X-Ray CT,Scans, X-Ray CAT,Scans, X-Ray CT,Tomographies, Computed X-Ray,Tomography, Computed X-Ray,Tomography, Electron Beam,Tomography, X Ray Computer Assisted,Tomography, X Ray Computerized,Tomography, X Ray Computerized Axial,Transmission Computed Tomography,X Ray Computer Assisted Tomography,X Ray Computerized Axial Tomography,X Ray, CT,X Rays, CT,X-Ray CAT Scan,X-Ray CAT Scans,X-Ray CT Scan,X-Ray CT Scans,X-Ray Computed Tomography,X-Ray Computerized Tomography,Xray Computed Tomography
D014102 Torsion Abnormality An abnormal twisting or rotation of a bodily part or member on its axis. Abnormality, Torsion,Abnormalities, Torsion,Torsion Abnormalities

Related Publications

Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
January 1989, Journal of the American Veterinary Medical Association,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
July 1993, The Veterinary record,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
March 2016, Journal of the American Veterinary Medical Association,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
January 2015, Journal of the American Animal Hospital Association,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
January 2012, Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
November 2009, The Journal of veterinary medical science,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
August 1995, Journal of the American Veterinary Medical Association,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
January 1991, AJR. American journal of roentgenology,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
January 1971, Khirurgiia,
Jonathan R Hughes, and Victoria S Johnson, and Marie-Aude Genain
January 2003, Radiographics : a review publication of the Radiological Society of North America, Inc,
Copied contents to your clipboard!