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.
Medical Definition of COLLATERAL CIRCULATION. : circulation of blood established through enlargement of minor vessels and anastomosis of vessels with those of adjacent parts when a major vein or artery is functionally impaired (as by obstruction); also: the modified vessels through which such circulation occurs.edical Definition of COLLATERAL CIRCULATION. : circulation of blood established through enlargement of minor vessels and anastomosis of vessels with those of adjacent parts when a major vein or artery is functionally impaired (as by obstruction); also: the modified vessels through which such circulation occurs.
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.