Retiform purpura: A diagnostic approach.

Area of Science:

• Dermatology
• Vascular Medicine
• Pathology

Background:

• Retiform purpura presents as a specific reticulate (net-like) rash of vascular origin.
• It arises from compromised cutaneous blood vessels, leading to ischemia, purpura, and necrosis.
• Recognizing this morphology is critical in acutely ill patients for diagnosis and management.

Purpose of the Study:

• To provide a comprehensive overview of the differential diagnosis for retiform purpura.
• To outline a practical approach for the workup of patients presenting with this condition.
• To highlight recent treatment updates for common causes of retiform purpura.

Main Methods:

• Literature review and synthesis of existing knowledge on retiform purpura.
• Analysis of conditions causing cutaneous vessel wall damage or lumen occlusion.
• Discussion of diagnostic workup strategies and therapeutic interventions.

Main Results:

• The differential diagnosis is extensive, encompassing numerous conditions affecting skin vasculature.
• A structured approach to workup can help narrow down potential underlying causes.
• Treatment strategies vary widely depending on the etiology of the purpura.

Conclusions:

• Retiform purpura is a significant clinical sign requiring prompt evaluation.
• Understanding the broad differential diagnosis is key to effective patient management.
• This review aims to equip clinicians with tools for diagnosing and treating retiform purpura.