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

Figure 1

B-mode mammary gland ultrasound (between markers) of healthy cats during anestrus, at late pregnancy, and during lactation. (a) Right caudal thoracic mammary gland with homogeneous echotexture, hypoechoic parenchyma, and well-defined margins. (b) Right caudal abdominal mammary gland with homogeneous echotexture, hypoechoic parenchyma, and less distinct margins. (c) Left caudal abdominal mammary gland with heterogeneous echotexture, slightly hypoechoic parenchyma (comparing to superficial tissue), and the presence of anechogenic mammary ducts (arrows). Cr: cranial. Frequency = 15 MHz.

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