Fig. 5From: Clinical, laboratory and ultrasonographic findings in 87 cows with type-4 abomasal ulcerUltrasonogram of the reticulum obtained from the ventral abdominal wall showing fibrinous changes and effusion in the reticular area in a 2.6-year-old Holstein-Friesian cow with type-4 abomasal ulcer. A 5.0-MHz convex transducer was used. 1 Ventral abdominal wall, 2 Reticulum, 3 Anterior dorsal blind sac of rumen, 4 Extensive fluid accumulation ventral and caudal to reticulum, 5 Fibrin on the serosal surface of the reticulum extending to dorsal blind sac of rumen, Cr Cranial, Cd CaudalBack to article page