A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog

Abstract Background Heart tumors are rare in dogs. They can be benign or malignant. Clinical signs depend primarily on the location of the tumor and its effect on blood flow. Case presentation An eleven-year-old crossbreed male dog lethargic and anorectic for previous 3 days was presented to the vet...

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Main Authors: Olga Szaluś-Jordanow, Michał Czopowicz, Agata Moroz-Fik, Marcin Mickiewicz, Andrzej Łobaczewski, Sylwia Tarka, Łukasz Koperski, Rafał Sapierzyński
Format: Article
Language:English
Published: BMC 2023-08-01
Series:BMC Veterinary Research
Subjects:
Online Access:https://doi.org/10.1186/s12917-023-03701-5
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author Olga Szaluś-Jordanow
Michał Czopowicz
Agata Moroz-Fik
Marcin Mickiewicz
Andrzej Łobaczewski
Sylwia Tarka
Łukasz Koperski
Rafał Sapierzyński
author_facet Olga Szaluś-Jordanow
Michał Czopowicz
Agata Moroz-Fik
Marcin Mickiewicz
Andrzej Łobaczewski
Sylwia Tarka
Łukasz Koperski
Rafał Sapierzyński
author_sort Olga Szaluś-Jordanow
collection DOAJ
description Abstract Background Heart tumors are rare in dogs. They can be benign or malignant. Clinical signs depend primarily on the location of the tumor and its effect on blood flow. Case presentation An eleven-year-old crossbreed male dog lethargic and anorectic for previous 3 days was presented to the veterinary clinic. The focused ultrasound assessment with sonograms in trauma (FAST) revealed multiple tumors in the heart which were then confirmed in echocardiographic examination performed by a veterinary cardiologist. Due to the poor general condition and grave prognosis, the dog was humanely euthanized. The autopsy revealed numerous intracardiac tumors in all four heart chambers. No proliferative changes were found in other organs either in thoracic or abdominal cavity. Immunohistochemical examination was performed using formalin-fixed, paraffin-embedded tissue from heart masses. The antibodies against myoglobin, desmin, smooth muscle actin, vimentin, CD34, S100, and pan-cytokeratin (AE1/AE3) were used. Microscopically, the tumor was composed of fascicles of spindle-shaped cells with pale eosinophilic cytoplasm with round, oval, and focally elongated nuclei and one or two prominent nucleoli. The tumor cells showed strong diffuse cytoplasmic immunopositivity for myoglobin and vimentin and focal staining for desmin. Immunostainings for smooth muscle actin-SMA, CD34, pan-cytokeratin, S-100 protein were negative. The immunohistochemical staining pattern confirmed rhabdomyosarcoma. Conclusions This is the first description of the primary multiple heart rhabdomyosarcoma in a dog.
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spelling doaj.art-0efa8e7194634e00baa31841134c4cac2023-11-26T13:37:59ZengBMCBMC Veterinary Research1746-61482023-08-011911810.1186/s12917-023-03701-5A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dogOlga Szaluś-Jordanow0Michał Czopowicz1Agata Moroz-Fik2Marcin Mickiewicz3Andrzej Łobaczewski4Sylwia Tarka5Łukasz Koperski6Rafał Sapierzyński7Department of Small Animal Diseases with Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGWDivision of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGWDivision of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGWDivision of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGWVeterinary Clinic AuxiliumDepartment of Forensic Medicine, Medical University of WarsawDepartment of Pathology, Medical University of WarsawDepartment of Pathology and Veterinary Diagnostic, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGWAbstract Background Heart tumors are rare in dogs. They can be benign or malignant. Clinical signs depend primarily on the location of the tumor and its effect on blood flow. Case presentation An eleven-year-old crossbreed male dog lethargic and anorectic for previous 3 days was presented to the veterinary clinic. The focused ultrasound assessment with sonograms in trauma (FAST) revealed multiple tumors in the heart which were then confirmed in echocardiographic examination performed by a veterinary cardiologist. Due to the poor general condition and grave prognosis, the dog was humanely euthanized. The autopsy revealed numerous intracardiac tumors in all four heart chambers. No proliferative changes were found in other organs either in thoracic or abdominal cavity. Immunohistochemical examination was performed using formalin-fixed, paraffin-embedded tissue from heart masses. The antibodies against myoglobin, desmin, smooth muscle actin, vimentin, CD34, S100, and pan-cytokeratin (AE1/AE3) were used. Microscopically, the tumor was composed of fascicles of spindle-shaped cells with pale eosinophilic cytoplasm with round, oval, and focally elongated nuclei and one or two prominent nucleoli. The tumor cells showed strong diffuse cytoplasmic immunopositivity for myoglobin and vimentin and focal staining for desmin. Immunostainings for smooth muscle actin-SMA, CD34, pan-cytokeratin, S-100 protein were negative. The immunohistochemical staining pattern confirmed rhabdomyosarcoma. Conclusions This is the first description of the primary multiple heart rhabdomyosarcoma in a dog.https://doi.org/10.1186/s12917-023-03701-5RhabdomyosarcomaHeartNeoplasmsDogEchocardiography
spellingShingle Olga Szaluś-Jordanow
Michał Czopowicz
Agata Moroz-Fik
Marcin Mickiewicz
Andrzej Łobaczewski
Sylwia Tarka
Łukasz Koperski
Rafał Sapierzyński
A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog
BMC Veterinary Research
Rhabdomyosarcoma
Heart
Neoplasms
Dog
Echocardiography
title A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog
title_full A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog
title_fullStr A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog
title_full_unstemmed A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog
title_short A primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog
title_sort primary multiple pleomorphic rhabdomyosarcoma of the heart in an adult dog
topic Rhabdomyosarcoma
Heart
Neoplasms
Dog
Echocardiography
url https://doi.org/10.1186/s12917-023-03701-5
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