Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs

Abstract Background Histiocytic sarcoma affecting the central nervous system (CNS HS) in dogs may present as primary or disseminated disease, often characterized by inflammation. Prognosis is poor, and imaging differentiation from other CNS tumors can be problematic. Objective To characterize the cl...

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Main Authors: Izumi Toyoda, William Vernau, Beverly K. Sturges, Karen M. Vernau, John Rossmeisl, Kurt Zimmerman, Chelsea M. Crowe, Kevin Woolard, Michelle Giuffrida, Robert J. Higgins, Peter J. Dickinson
Format: Article
Language:English
Published: Wiley 2020-03-01
Series:Journal of Veterinary Internal Medicine
Subjects:
Online Access:https://doi.org/10.1111/jvim.15673
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author Izumi Toyoda
William Vernau
Beverly K. Sturges
Karen M. Vernau
John Rossmeisl
Kurt Zimmerman
Chelsea M. Crowe
Kevin Woolard
Michelle Giuffrida
Robert J. Higgins
Peter J. Dickinson
author_facet Izumi Toyoda
William Vernau
Beverly K. Sturges
Karen M. Vernau
John Rossmeisl
Kurt Zimmerman
Chelsea M. Crowe
Kevin Woolard
Michelle Giuffrida
Robert J. Higgins
Peter J. Dickinson
author_sort Izumi Toyoda
collection DOAJ
description Abstract Background Histiocytic sarcoma affecting the central nervous system (CNS HS) in dogs may present as primary or disseminated disease, often characterized by inflammation. Prognosis is poor, and imaging differentiation from other CNS tumors can be problematic. Objective To characterize the clinicopathological inflammatory features, breed predisposition, and survival in dogs with CNS HS. Animals One hundred two dogs with HS, 62 dogs with meningioma. Methods Retrospective case series. Records were reviewed for results of cerebrospinal fluid (CSF) analysis, CBC, treatment, and outcome data. Results Predisposition for CNS HS was seen in Bernese Mountain Dogs, Golden Retrievers, Rottweilers, Corgis, and Shetland Sheepdogs (P ≤ .001). Corgis and Shetland Sheepdogs had predominantly primary tumors; Rottweilers had exclusively disseminated tumors. Marked CSF inflammation was characteristic of primary rather than disseminated HS, and neoplastic cells were detected in CSF of 52% of affected dogs. Increased neutrophil to lymphocyte ratios were seen in all groups relative to controls (P <.008) but not among tumor subtypes. Definitive versus palliative treatment resulted in improved survival times (P < .001), but overall prognosis was poor. Conclusions and Clinical Importance Clinicopathological differences between primary and disseminated HS suggest that tumor biological behavior and origin may be different. Corgis and Shetland Sheepdogs are predisposed to primary CNS HS, characterized by inflammatory CSF. High total nucleated cell count and the presence of neoplastic cells support the use of CSF analysis as a valuable diagnostic test. Prognosis for CNS HS is poor, but further evaluation of inflammatory mechanisms may provide novel therapeutic opportunities.
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spelling doaj.art-7048d89df2ce4245aec3c14ff549b82a2022-12-22T01:01:42ZengWileyJournal of Veterinary Internal Medicine0891-66401939-16762020-03-0134282883710.1111/jvim.15673Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogsIzumi Toyoda0William Vernau1Beverly K. Sturges2Karen M. Vernau3John Rossmeisl4Kurt Zimmerman5Chelsea M. Crowe6Kevin Woolard7Michelle Giuffrida8Robert J. Higgins9Peter J. Dickinson10Veterinary Medical Teaching Hospital School of Veterinary Medicine, University of California‐Davis Davis CaliforniaDepartment of Pathology, Microbiology and Immunology University of California Davis, School of Veterinary Medicine Davis CaliforniaDepartment of Surgical and Radiological Sciences University of California Davis, School of Veterinary Medicine Davis CaliforniaDepartment of Surgical and Radiological Sciences University of California Davis, School of Veterinary Medicine Davis CaliforniaDepartment of Small Animal Clinical Sciences Virginia‐Maryland College of Veterinary Medicine Blacksburg VirginiaDepartment of Small Animal Clinical Sciences Virginia‐Maryland College of Veterinary Medicine Blacksburg VirginiaVeterinary Medical Teaching Hospital School of Veterinary Medicine, University of California‐Davis Davis CaliforniaDepartment of Pathology, Microbiology and Immunology University of California Davis, School of Veterinary Medicine Davis CaliforniaDepartment of Surgical and Radiological Sciences University of California Davis, School of Veterinary Medicine Davis CaliforniaDepartment of Pathology, Microbiology and Immunology University of California Davis, School of Veterinary Medicine Davis CaliforniaDepartment of Surgical and Radiological Sciences University of California Davis, School of Veterinary Medicine Davis CaliforniaAbstract Background Histiocytic sarcoma affecting the central nervous system (CNS HS) in dogs may present as primary or disseminated disease, often characterized by inflammation. Prognosis is poor, and imaging differentiation from other CNS tumors can be problematic. Objective To characterize the clinicopathological inflammatory features, breed predisposition, and survival in dogs with CNS HS. Animals One hundred two dogs with HS, 62 dogs with meningioma. Methods Retrospective case series. Records were reviewed for results of cerebrospinal fluid (CSF) analysis, CBC, treatment, and outcome data. Results Predisposition for CNS HS was seen in Bernese Mountain Dogs, Golden Retrievers, Rottweilers, Corgis, and Shetland Sheepdogs (P ≤ .001). Corgis and Shetland Sheepdogs had predominantly primary tumors; Rottweilers had exclusively disseminated tumors. Marked CSF inflammation was characteristic of primary rather than disseminated HS, and neoplastic cells were detected in CSF of 52% of affected dogs. Increased neutrophil to lymphocyte ratios were seen in all groups relative to controls (P <.008) but not among tumor subtypes. Definitive versus palliative treatment resulted in improved survival times (P < .001), but overall prognosis was poor. Conclusions and Clinical Importance Clinicopathological differences between primary and disseminated HS suggest that tumor biological behavior and origin may be different. Corgis and Shetland Sheepdogs are predisposed to primary CNS HS, characterized by inflammatory CSF. High total nucleated cell count and the presence of neoplastic cells support the use of CSF analysis as a valuable diagnostic test. Prognosis for CNS HS is poor, but further evaluation of inflammatory mechanisms may provide novel therapeutic opportunities.https://doi.org/10.1111/jvim.15673caninecentral nervous systemcerebrospinal fluidneoplasia
spellingShingle Izumi Toyoda
William Vernau
Beverly K. Sturges
Karen M. Vernau
John Rossmeisl
Kurt Zimmerman
Chelsea M. Crowe
Kevin Woolard
Michelle Giuffrida
Robert J. Higgins
Peter J. Dickinson
Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs
Journal of Veterinary Internal Medicine
canine
central nervous system
cerebrospinal fluid
neoplasia
title Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs
title_full Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs
title_fullStr Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs
title_full_unstemmed Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs
title_short Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs
title_sort clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs
topic canine
central nervous system
cerebrospinal fluid
neoplasia
url https://doi.org/10.1111/jvim.15673
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