ABSTRACT
The nailfold capillaries are tiny loops. However, running parallel to the skin surface they are visible not as dots but as loops of up to 0.5-2 mm in length. Their characteristic differences and diagnostic importance in autoimmune diseases, such as lupus erythematosus or dermatomyositis have been extensively described (Beltrán et al., 2007). Only in rare instances do they have to be distinguished from vessels in paraungual tumors.
