Bone involvement pattern in hypervascular lesions.

The pattern of the focal bone lesion which consists partly or wholly of rounded holes with comparatively smooth edges is discussed. Twenty-two bone lesions were studied by angiography. The "hypervascular pattern" occurred in five cases of widely different histology, all with strong intraosseous hypervascularity. Different pathogenic mechanisms in the creation of this pattern are discussed. It is probably the result of both destructive and reparative processes in the bone.