Which term refers to localized retrograde flow not in continuity from the groin to the calf?

The term that accurately describes localized retrograde flow not in continuity from the groin to the calf is segmental reflux. This condition occurs when there is backward flow of blood in a specific segment of the venous system, indicating the presence of a venous insufficiency in that segment.

Segmental reflux is usually identified through diagnostic imaging techniques, such as Doppler ultrasound, which can demonstrate the flow patterns in the veins. This localized reflux can occur due to damage or dysfunction of the valve in that segment, leading to reflux that is confined to a particular area rather than being widespread or continuous.

In contrast, other terms like venous occlusion refer to a blockage within the vein, axial reflux relates to a backflow along the main venous channel, and neovascularization describes the formation of new blood vessels, typically as a response to ischemia or injury, rather than flow patterns within existing veins. Understanding these distinctions is crucial in diagnosing and treating venous disorders effectively.