Livedo reticularis and related disorders

Area of Science:

• Dermatology
• Vascular Medicine

Background:

• Livedo reticularis presents as a violaceous, fishnet-like skin mottling.
• Etiologies include primary and secondary causes, with livedo racemosa as a distinct variant.
• Current therapeutic guidelines lack evidence-based support.

Purpose of the Study:

• To review the management of livedo reticularis and its variants.
• To provide guidance on therapeutic approaches in the absence of evidence-based medicine.

Main Methods:

• Literature review and synthesis of current understanding.
• Discussion of symptomatic and etiological treatment strategies.

Main Results:

• Most patients with livedo reticularis are asymptomatic and require no intervention.
• Symptomatic relief may involve cold avoidance and vasodilators (e.g., calcium channel blockers).
• Treating underlying systemic causes is crucial for secondary livedo reticularis and livedo racemosa.

Conclusions:

• Livedo reticularis management is primarily symptomatic and supportive.
• Addressing secondary causes is paramount for significant clinical improvement.
• Specific conditions like antiphospholipid antibody syndrome may not resolve livedo racemosa despite treatment.