SAEVA Congress 2018 Proceedings | 12-15 February 2018 | ATKV Goudini Spa
Collapsed folded bladder surrounded by urine
Urachal ruptures appear as an intact fluid filled bladder with fluid dissecting out along
the urachus. An intact, fluid-filled bladder and a large volume of anechoic abdominal
fluid are imaged in foals with a ureteral defect. If the defect is near the kidney,
retroperitoneal fluid (urine) is imaged surrounding the kidney. A necrotizing cystitis
resulting in uroperitoneum appears as a thick hypoechoic to anechoic bladder wall.
Pulmonary abscess
Abscesses are identified ultrasonographically in the lung by their cavitated appearance
and the absence of any normal pulmonary structures (vessels or bronchi) detected
within. An anechoic area lacking air or fluid bronchograms with acoustic enhancement
of the wall or lung deep to the sonolucent area is the initial sonographic appearance of
an abscess. Abscesses may be encapsulated with an echogenic fibrous capsule, but
are more frequently imaged without any ultrasonographic evidence of encapsulation.
The material contained within the abscess may vary from anechoic to hyperechoic,
depending upon the type of exudate present. Loculations or compartmentalization of
the abscess may be present. Most abscesses are more sonolucent than the
surrounding pulmonary parenchyma, but may appear more echogenic if thick purulent
or caseous exudate is present.
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