Because the blood vessels comprising an angioma are so close to the skin's surface, cherry angiomas may bleed profusely if they are injured. [citation needed] One study found that the majority of capillaries in cherry hemangiomas are fenestrated because of staining for carbonic anhydrase activity. Cause
The indispensable quality of leadership that lends to vision building is intense, near absolute focus on a desired objective or outcome. A visionary leader is determined to find the path to that end result, but is never tunnel-visioned in its pursuit.
A well recognized definition of leadership by Warren Bennis is  Leadership is the function of knowing yourself , having a vision that is well communicated, building trust among colleagues and taking effective action to realize your own leadership potential..