Sonographic Assessment of the Normal and Abnormal Feline Mammary Glands and Axillary and Inguinal Lymph Nodes.

Autor: Moraes NS; Department of Veterinary Medicine, Veterinary School and Animal Science (Escola de Veterinária e Zootecnica-EVZ), Federal University of Goiás (Universidade Federal de Goiás-UFG), Highway Goiânia-Nova Veneza, km 8, Campus Samambaia, Goiânia 74690-900, Goiás, Brazil., Borges NC; Department of Veterinary Medicine, Veterinary School and Animal Science (Escola de Veterinária e Zootecnica-EVZ), Federal University of Goiás (Universidade Federal de Goiás-UFG), Highway Goiânia-Nova Veneza, km 8, Campus Samambaia, Goiânia 74690-900, Goiás, Brazil.
Jazyk: angličtina
Zdroj: Veterinary medicine international [Vet Med Int] 2021 Jul 02; Vol. 2021, pp. 9998025. Date of Electronic Publication: 2021 Jul 02 (Print Publication: 2021).
DOI: 10.1155/2021/9998025
Abstrakt: Ultrasound has been used as a diagnostic tool in normal mammary glands and mammary tumors of several species. This study aims to describe the B-mode and Doppler ultrasound features of the mammary glands and draining lymph nodes in 32 adult female cats. Group 1 (G1) consisted of 22 cats without changes in the mammary glands. The average age was 45 ± 25.09 months, where 63.6% ( n  = 14) were neutered and 31.8% ( n  = 7) had received progestin at some point for reproductive control. Mammary gland structure was predominantly hypoechoic and homogeneous, with well-defined margins. The average thickness was 1.52 ± 1.59 mm, although it may be affected by estrus, pregnancy, and lactation. In G1, 100% of lymph nodes were homogeneous, 98% were hypoechoic, and 100% were with well-defined margins and hilar vascularization. Group 2 (G2) consisted of 10 cats with mammary nodules. The average age was 88.8 ± 40.5 months, and 70% were intact and all had already received progestin. Ultrasound demonstrated enlarged mammary glands, with nodules of different textures clinically, mainly affecting the abdominal mammary glands (61%). In 33.33%, there were visible mammary ducts. Only 54.17% were homogeneous, 95.83% were hypoechoic, and the margins were regular in 52.08%. Lymph nodes in abnormal mammary chains may present changes in size, shape, echotexture, and echogenicity. Ultrasound examination of the mammary glands and lymph nodes are possible to evaluate the entire mammary chain as well the superficial inguinal and axillary lymph nodes for abnormalities in the feline.
Competing Interests: The authors declare that there are no conflicts of interest regarding the publication of this paper.
(Copyright © 2021 Nayara S. Moraes and Naida C. Borges.)
Databáze: MEDLINE
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