[Significance and taxonomy of functional and organic acral circulatory disorders and cutaneous microangiopathies].

Acral disturbances of the blood supply and cutaneous microangiopathies may be associated with functional as well as with organic vascular disturbances. The primary angiopathies are independent clinical pictures, the causes of which are still unknown. In numerous diseases secondary forms of the disturbances of the acral blood supply and the microangiopathies can occur. The systematics represented corresponds to the relevant ambulatory view-points. On the basis of the frequency of several clinical pictures is referred to the importance for the policlinical practice.