Which condition is the result of a blood clot in a deep vein?

Deep vein thrombosis (DVT) is a condition that specifically occurs when a blood clot forms in one of the deep veins, usually in the legs. This clot can block blood flow, which can lead to swelling, pain, and other complications. DVT is particularly concerning because if the clot dislodges, it can travel to the lungs and cause a pulmonary embolism, which can be life-threatening.

In contrast, a cerebrovascular accident (CVA), commonly referred to as a stroke, occurs when there is an interruption of blood supply to the brain, generally due to a clot in a cerebral artery. Congestive heart failure (CHF) is a chronic condition that affects the heart's ability to pump blood effectively, and an aneurysm involves a localized enlargement of an artery due to a weakness in the arterial wall. These conditions do not stem from a clot specifically located in a deep vein. Thus, DVT is the only condition listed that directly relates to the presence of a blood clot in the deep veins.