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Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors

BACKGROUND: Accurate early diagnosis of lung metastases is important for establishing therapeutic measures. Therefore, the present study aimed to compare survey thoracic radiographs and computerized tomography (CT) scans to specifically identify lung metastases in female dogs with mammary tumors. ME...

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Autores principales: Otoni, Carolina C, Rahal, Sheila C, Vulcano, Luiz C, Ribeiro, Sérgio M, Hette, Khadije, Giordano, Tatiana, Doiche, Danuta P, Amorim, Renée L
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2843686/
https://www.ncbi.nlm.nih.gov/pubmed/20214816
http://dx.doi.org/10.1186/1751-0147-52-20
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author Otoni, Carolina C
Rahal, Sheila C
Vulcano, Luiz C
Ribeiro, Sérgio M
Hette, Khadije
Giordano, Tatiana
Doiche, Danuta P
Amorim, Renée L
author_facet Otoni, Carolina C
Rahal, Sheila C
Vulcano, Luiz C
Ribeiro, Sérgio M
Hette, Khadije
Giordano, Tatiana
Doiche, Danuta P
Amorim, Renée L
author_sort Otoni, Carolina C
collection PubMed
description BACKGROUND: Accurate early diagnosis of lung metastases is important for establishing therapeutic measures. Therefore, the present study aimed to compare survey thoracic radiographs and computerized tomography (CT) scans to specifically identify lung metastases in female dogs with mammary tumors. METHODS: Twenty-one female dogs, weighing 3 to 34 kg and aged from 5 years to 14 years and 10 months, with mammary tumors were studied. In all dogs before the imaging examinations, fine-needle aspiration cytology of the mammary tumors was performed to confirm the diagnosis. Three-view thoracic radiographs were accomplished: right lateral, left lateral and ventrodorsal views. Sequential transverse images of the thorax were acquired on a spiral Scanner, before and after intravenous bolus injection of nonionic iodine contrast. Soft-tissue and lung windows were applied. All the mammary tumors were surgically removed and examined histologically. RESULTS: The correlation between the cytological and histological results regarding presence of malignancy was observed in only 17 cases. In radiographic examinations, no dog displayed signs of lung metastases or thorax chest lesions. CT detected lung metastasis in two cases, while small areas of lung atelectasis located peripherally were found in 28.57% of the dogs. CONCLUSION: In this study population, spiral CT showed higher sensitivity than chest radiographies to detect lung metastasis; this indicates that CT should be performed on all female dogs with malignant mammary tumors.
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spelling pubmed-28436862010-03-23 Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors Otoni, Carolina C Rahal, Sheila C Vulcano, Luiz C Ribeiro, Sérgio M Hette, Khadije Giordano, Tatiana Doiche, Danuta P Amorim, Renée L Acta Vet Scand Research BACKGROUND: Accurate early diagnosis of lung metastases is important for establishing therapeutic measures. Therefore, the present study aimed to compare survey thoracic radiographs and computerized tomography (CT) scans to specifically identify lung metastases in female dogs with mammary tumors. METHODS: Twenty-one female dogs, weighing 3 to 34 kg and aged from 5 years to 14 years and 10 months, with mammary tumors were studied. In all dogs before the imaging examinations, fine-needle aspiration cytology of the mammary tumors was performed to confirm the diagnosis. Three-view thoracic radiographs were accomplished: right lateral, left lateral and ventrodorsal views. Sequential transverse images of the thorax were acquired on a spiral Scanner, before and after intravenous bolus injection of nonionic iodine contrast. Soft-tissue and lung windows were applied. All the mammary tumors were surgically removed and examined histologically. RESULTS: The correlation between the cytological and histological results regarding presence of malignancy was observed in only 17 cases. In radiographic examinations, no dog displayed signs of lung metastases or thorax chest lesions. CT detected lung metastasis in two cases, while small areas of lung atelectasis located peripherally were found in 28.57% of the dogs. CONCLUSION: In this study population, spiral CT showed higher sensitivity than chest radiographies to detect lung metastasis; this indicates that CT should be performed on all female dogs with malignant mammary tumors. BioMed Central 2010-03-09 /pmc/articles/PMC2843686/ /pubmed/20214816 http://dx.doi.org/10.1186/1751-0147-52-20 Text en Copyright ©2010 Otoni et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Otoni, Carolina C
Rahal, Sheila C
Vulcano, Luiz C
Ribeiro, Sérgio M
Hette, Khadije
Giordano, Tatiana
Doiche, Danuta P
Amorim, Renée L
Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors
title Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors
title_full Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors
title_fullStr Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors
title_full_unstemmed Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors
title_short Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors
title_sort survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2843686/
https://www.ncbi.nlm.nih.gov/pubmed/20214816
http://dx.doi.org/10.1186/1751-0147-52-20
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