Congestion of the lungs and fluid accumulation are common. Fluid can also build up in the abdomen and around the lungs, if the right side of the heart is also involved. Congestion and fluid buildup indicate heart failure. Dogs with DCM-induced heart failure often have left-sided congestive failure.
Arterial anastomoses provides alternate pathways (collateral channels or collateral circulation) for blood to reach a given body region. If one arterial branch is blocked or cut, the collateral channel can often provide the region with an adequate blood supply and thereby, minimizing the damage at tissue level.rterial anastomoses are abundant in abdominal organs and around joints where active body movements may hinder blood flow through one channel. Arteries that do not anastomose, or have a poorly developed collateral circulation are known as end arteries. These end arteries supply the retina, kidneys, and spleen.
The damaged blood vessel may be an artery, vein, or capillary; the bleeding may be very tiny, with just a dot of blood, or it can be large and cause significant blood loss. It is a type of internal bleeding that is either clotted or is forming clots. Hemorrhage. Hematomas are often described based upon their location in the body, whether it is in the skull (intracranial), under the fingernail (subungual), or in the earlobe. Hematomas of the skin may also be named based upon their size. Petechiae are tiny dots of blood usually less than 3 millimeters in diameter (0.12 inch) while purpura are less than 10 millimeters in diameter (0.40 inch) and ecchymosis is greater than 10 millimeters in diameter. Ecchymosis is commonly considered a bruise.