Livedo reticularis is a violaceous discoloration of the skin with a characteristic network pattern.
Most common on the legs, it can be the result of many causes including intravascular obstruction, vessel wall disease including vasculitis, physiological - where it is called cutis marmorata -, secondary to chronic heat application, erythema abigne, and idiopathic.
Livedo reticularis is accentuated by cold.
Other evidence of compromised peripheral circulation, such as ulceration, may be present.
- Keep the extremity at body temperature.
- Rule out treatable systemic causes.
- Oral aspirin, pentoxifylline, and androgens have been reported to be sometimes helpful.