SAEVA Congress 2018 Proceedings | 12-15 February 2018 | ATKV Goudini Spa
often detected in horses with lymphosarcoma but their absence on the sonographic
examination does not rule out the diagnosis. Hepatic and splenic involvement may
also be detected.
Diffuse jejunal thickening with alimentary lymphosarcoma
Large solitary mostly homogeneous mural masses are also occasionally imaged in
horses with lymphosarcoma. Hypoechoic homogeneous enlarged mesenteric lymph
nodes are common. Hepatic and splenic involvement may also be detected.
Abdominal abscess
Abdominal abscesses may be anechoic, hypoechoic, or filled with echoic material and
may be loculated. Hyperechoic echoes representing free gas may be detected
suggesting concurrent anaerobic infection. Mixed homogeneously hypoechoic or
heterogeneous encapsulated abscesses are common in horses with mesenteric
abscesses associated with Streptococcus equi spp. equi and are detectable via
transcutaneous and/or transrectal ultrasonography. A moderate amount of peritoneal
fluid may be imaged in horses with abdominal abscesses. Thickening of the small
intestine or dilated small intestinal loops may also be imaged. Large and/or small
intestine may be adhered to the wall of the abscess and its motion restricted.
Occasionally mesenteric abscessation can also occur with Corynebacterium
pseudotuberculosis. Serial ultrasonographic evaluation is also useful to monitor the
horse’s response to treatment.
Abscess in the wall of the right ventral colon
Ultrasonographic Findings in Horses with Liver Disease
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