Two guinea pigs (Cavia porcellus) with clinical signs of anorexia, weight loss, depression and abdominal enlargement were examined. During ultrasound examination, a fluid-filled anechogenic structure 3–4 cm in diameter, with echogenic spots and a highly echogenic thick wall, was found in the pelvic region in one case and connected to the liver in the other case. An abscess or a cyst was suspected and surgical treatment including laparotomy was performed. By histopathological examination performed after surgery, a liver abscess was diagnosed in one guinea pig and an abscess in the pelvic region in the other animal.
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'Use of echography in rats for pregnancy diagnosis. ' () 47 Jpn. J. Vet. Sci. : 523 -525.
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'Use of echography in rabbit for pregnancy diagnosis. ' () 48 Jpn. J. Vet. Sci. : 1003 -1006.