Infrared Thermography in Dogs with Mammary Tumors and Healthy Dogs

Abstract

BackgroundInfrared thermography is a painless, noninvasive, nonionizing diagnostic imaging exam used in human medicine as an auxiliary tool for breast cancer diagnosis in women.Hypothesis/ObjectivesDefine thermographic mean temperatures of healthy mammary glands and compare these temperatures with those of mammary glands with tumors in dogs.AnimalsFifty client‐owned female dogs were evaluated, including 20 with histopathologically confirmed mammary tumor and 30 clinically healthy (control).MethodsA randomized study using infrared thermography analyzed each mammary gland of the animals from the control group and mammary glands with tumors from the tumor group, then the thermographic temperatures obtained were compared. Thermographic exam was performed in a temperature‐controlled room with a cooled thermographic camera—Flir E‐40 (Flir Systems®)ResultsThere was significantly a higher temperature in the caudal abdominal and inguinal mammary glands than the other glands in the healthy group (P < .05). Dogs with mammary tumors had significantly higher thermographic temperature compared with unaffected glands regardless of the tumor size and the location (P < .05).Conclusions and clinical importanceThe technique seems to be able to assess for the presence of neoplasia within the mammary tissue in bitches. Further investigation is necessary to determine the impact of this technique when adopted clinically.

Avaliação termográfica do efeito do piroxicam como tratamento adjuvante em neoplasias mamárias de cadelas

“…A avaliação da temperatura das glândulas mamárias em estudos recentes indica que há aumento significativo nos tecidos afetados quando comparados a tecidos mamários saudáveis, independentemente do tamanho do tumor (Pavelski et al, 2015). Nas neoplasias mais agressivas, de crescimento rápido, maior tamanho, ulceradas e aderidas, a presença da COX-2 pode ser mais elevada, além da alta expressão de fatores de crescimento vascular e tumoral, promovendo maior aumento da temperatura (Anadol et al, 2017;Queiroga, Pires, Parente, Gregório, & Lopes, 2011).…”

“…Entretanto, os diferentes autores divergem quanto à classificação dos tumores. Carvalho et al (2016) encontraram predomínio dos carcinomas tubulopapilares enquanto que Pavelski et al (2015) observaram maior número de carcinomas papilares em suas análises. As principais mamas acometidas foram as abdominais caudais e inguinais, como descrito na Tabela 1, corroborando com os dados da literatura, tal fato justifica-se pela maior quantidade de tecido mamário presente nessas regiões da cadeia (De Nardi et al, 2016;Pavelski et al, 2015).…”

Termoterapia Em Cães

“…Em humanos, esse recurso é utilizado em diversas especialidades médicas como a angiologia, reumatologia, medicina esportiva, cirurgia plástica e na oncologia, especialmente para diagnóstico de câncer de mama em mulheres (PAVELSKI et al, 2015). A aplicação deste recurso é relativamente recente na veterinária.…”

Thermographic assessment of skin and soft tissue tumors in cats

“…1 Dynamic thermography, a modification of standard thermography, entails application of thermal stimuli prior to local temperature measurement to induce higher temperature gradients between diseased and surrounding tissues, so as to increase accuracy. 9 In contrast to the large number of studies in humans and dogs, 10,11 thermographic assessment of feline neoplastic diseases, including feline injection site sarcoma (FISS; a malignant mesenchymal tumor developing at sites of injection of vaccines and other products), has seldom been reported. 12 This study set out to determine the average temperature of feline skin and soft tissue tumors, and to investigate correlations between thermographic findings and histologic diagnosis following surgical resection.…”