Evaluation of ARFI elastography for detecting active mastitis in sheep with previous fibrous lesions: a study of mammary parenchyma and supramammary lymph nodes.

The aim of the study was to evaluate the use of Acustic Radiation Force Impulse (ARFI) elastography in mammary parenchyma and supramammary lymph nodes, for detection of active mastitis in sheep with naturally infected chronic fibrous lesions. 27 female sheep were included and B-mode ultrasound and ARFI elastography images were obtained, acquiring qualitative (echogenicity and echotexture) and quantitative (shear rate, depth and short/long axis ratio) variables of 48 mammary glands. The glands were divided into three experimental groups: control group (CG) - healthy animals; LSCC- animals that presented fibrous lesions and SCC (somatic cell count) less than 500 x 10 cls/mL; HSCC: animals that presented fibrous lesions and SCC (somatic cell count) more than 500 x 10 cls/mL; The qualitative variables using B-mode ultrasonography, including echotexture and echogenicity, showed no significant differences between the evaluated groups and tissues (p = 0.

True vaginal prolapse associated with retroflection of the urinary bladder in a bitch.

True vaginal prolapse is rare in bitches and is most likely to occur near whelping. A 2-year-old intact female Brazilian mastiff, 39.5 kg, had a true vaginal prolapse associated with urinary bladder retroflection; the female was in estrus, and concomitantly had diarrhea for 3 d, plus vaginal hyperplasia, and ultimately a vaginal prolapse.