The correct answer is:
The capillary form is composed of masses of capillaries, communicates freely with the systemic circulation and may be quite red in appearance and does not have calcification. Cavernous hemangiomas are composed of large, dilated, tortuous, thin walled endothelial cavities that when lying superficially, appear blue in color. They have little anastomosis with the systemic circulation. They intermittently increase and decrease in size, and have episodes of significant tenderness associated with episodes of clotting and in these clots the calcification may occur which can be seen on x-ray.
Go to Next Question Module, Go to Case Presentation Home Page, Orthopaedic Department Home Page.