Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma

Abstract Background In dogs, hepatic lymphoma is characterized by neoplastic lymphocyte infiltration into the liver. Reports on the computed tomography (CT) findings of the liver for canine hepatic lymphoma are few, with only one study of multiple liver lesions type. Objectives The purpose of this s...

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Autores principales:	Toshiyuki Tanaka, Hiroki Yamazaki, Kazuna Ashida, Yasumasa Iimori, Keiichiro Mie, Hidetaka Nishida, Hideo Akiyoshi
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	diagnosis dog hepatic disease imaging‐CT Veterinary medicine SF600-1100
Acceso en línea:	https://doaj.org/article/95f92c205c4b4417ab09738306aceef3
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spelling	oai:doaj.org-article:95f92c205c4b4417ab09738306aceef32021-11-19T17:14:25ZComputed tomography may detect liver infiltration of canine diffuse hepatic lymphoma2053-109510.1002/vms3.598https://doaj.org/article/95f92c205c4b4417ab09738306aceef32021-11-01T00:00:00Zhttps://doi.org/10.1002/vms3.598https://doaj.org/toc/2053-1095Abstract Background In dogs, hepatic lymphoma is characterized by neoplastic lymphocyte infiltration into the liver. Reports on the computed tomography (CT) findings of the liver for canine hepatic lymphoma are few, with only one study of multiple liver lesions type. Objectives The purpose of this study was to retrospectively assess the CT findings of the liver in canine diffuse hepatic lymphoma. Methods As control, five dogs without abnormalities in the liver were included. CT data were analysed, and the following were noted: presence of edge bluntness of the liver, presence of periportal collar sign, the liver size:body weight (BW) ratio and the mean attenuation of liver lesions on pre‐contrast, arterial‐phase, portal‐phase and equilibrium‐phase post‐contrast images. Results On CT examination, edge bluntness of the liver was significantly detected in lymphoma (4/5, 80%), as opposed to the control (0/5, 0%) (p = 0.048, φ = 0.82). The periportal collar sign was detected in lymphoma (3/5, 60%), as opposed to the control (0/5, 0%) (p = 0.17, φ = 0.65). The liver size:BW ratio of lymphoma cases was significantly higher compared to that of the control cases (p = 0.0002, r = 0.92). The mean Hounsfield unit of lymphoma cases in the pre‐contrast, arterial‐phase, portal‐phase and equilibrium‐phase images were significantly lower than in the control cases (p = 0.005, r = 0.81; p = 0.0003, r = 0.91; p = 0.01, r = 0.75 and p = 0.02, r = 0.71, respectively). Conclusions Hepatic lymphoma should be a differential for a blunted and enlarged liver with hypoattenuation on CT examination.Toshiyuki TanakaHiroki YamazakiKazuna AshidaYasumasa IimoriKeiichiro MieHidetaka NishidaHideo AkiyoshiWileyarticlediagnosisdoghepatic diseaseimaging‐CTVeterinary medicineSF600-1100ENVeterinary Medicine and Science, Vol 7, Iss 6, Pp 2172-2177 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	diagnosis dog hepatic disease imaging‐CT Veterinary medicine SF600-1100
spellingShingle	diagnosis dog hepatic disease imaging‐CT Veterinary medicine SF600-1100 Toshiyuki Tanaka Hiroki Yamazaki Kazuna Ashida Yasumasa Iimori Keiichiro Mie Hidetaka Nishida Hideo Akiyoshi Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma
description	Abstract Background In dogs, hepatic lymphoma is characterized by neoplastic lymphocyte infiltration into the liver. Reports on the computed tomography (CT) findings of the liver for canine hepatic lymphoma are few, with only one study of multiple liver lesions type. Objectives The purpose of this study was to retrospectively assess the CT findings of the liver in canine diffuse hepatic lymphoma. Methods As control, five dogs without abnormalities in the liver were included. CT data were analysed, and the following were noted: presence of edge bluntness of the liver, presence of periportal collar sign, the liver size:body weight (BW) ratio and the mean attenuation of liver lesions on pre‐contrast, arterial‐phase, portal‐phase and equilibrium‐phase post‐contrast images. Results On CT examination, edge bluntness of the liver was significantly detected in lymphoma (4/5, 80%), as opposed to the control (0/5, 0%) (p = 0.048, φ = 0.82). The periportal collar sign was detected in lymphoma (3/5, 60%), as opposed to the control (0/5, 0%) (p = 0.17, φ = 0.65). The liver size:BW ratio of lymphoma cases was significantly higher compared to that of the control cases (p = 0.0002, r = 0.92). The mean Hounsfield unit of lymphoma cases in the pre‐contrast, arterial‐phase, portal‐phase and equilibrium‐phase images were significantly lower than in the control cases (p = 0.005, r = 0.81; p = 0.0003, r = 0.91; p = 0.01, r = 0.75 and p = 0.02, r = 0.71, respectively). Conclusions Hepatic lymphoma should be a differential for a blunted and enlarged liver with hypoattenuation on CT examination.
format	article
author	Toshiyuki Tanaka Hiroki Yamazaki Kazuna Ashida Yasumasa Iimori Keiichiro Mie Hidetaka Nishida Hideo Akiyoshi
author_facet	Toshiyuki Tanaka Hiroki Yamazaki Kazuna Ashida Yasumasa Iimori Keiichiro Mie Hidetaka Nishida Hideo Akiyoshi
author_sort	Toshiyuki Tanaka
title	Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma
title_short	Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma
title_full	Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma
title_fullStr	Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma
title_full_unstemmed	Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma
title_sort	computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/95f92c205c4b4417ab09738306aceef3
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Computed tomography may detect liver infiltration of canine diffuse hepatic lymphoma

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