Livedoid vasculitis
Livedoid vasculitis is a chronic cutaneous disease seen predominantly in young to middle-aged women. One acronym used to describe its features is "Painful purpuric ulcers with reticular pattern of the lower extremities" (PURPLE). It is associated with a number of diseases, including chronic venous hypertension and varicosities.  

  • It can be accompanied by pain.
    References Livedoid vasculopathy: A review with focus on terminology and pathogenesis 36285834 
    Livedoid vasculopathy (LV) is a rare thrombotic vasculopathy of the dermis characterized by painful, relapsing ulcers over the lower extremities. Diagnosis is challenging due to the overlap in clinical appearance and nomenclature with other skin disorders. Treatment selection is complicated by poor understanding of the pathogenesis of LV and lack of robust clinical trials evaluating therapy efficacy. The terminology and pathophysiology of LV are reviewed here, along with its epidemiology, clinical and histologic features, and treatment options. A diagnostic pathway is suggested to guide providers in evaluating for comorbidities, referring to appropriate specialists, and choosing from the available classes of therapy.
     Livedoid vasculopathy: A review of pathogenesis and principles of management 27297279
    Livedoid vasculopathy is a rare skin condition that causes recurring ulcers on the lower legs, leaving behind pale scars known as atrophie blanche. While the exact cause is still unclear, it's believed that increased blood clotting (hypercoagulability) is the main factor, with inflammation playing a secondary role. Factors contributing to clotting include as follows - deficiencies in proteins C and S, genetic mutations like factor V Leiden, antithrombin III deficiency, prothrombin gene mutations, high levels of homocysteine. In biopsies, the condition shows blood clots inside vessels, thickening of vessel walls, and scarring. Treatment involves a multi-pronged approach focusing on preventing blood clots with medications like anti-platelet drugs, blood thinners, and fibrinolytic therapy. Various drugs can be used for this skin condition - colchicine and hydroxychloroquine, vasodilators, immunosuppressants.
     Livedoid Vasculopathy 32644463 
    Livedoid vasculopathy is a rare vasculopathy that is typically characterized by bilateral lower limb lesions. Increased thrombotic activity and decreased fibrinolytic activity along with endothelial damage are believed to be the cause of thrombus formation in the capillary vasculature. It is 3 times more common in females than in males, especially in patients between the ages of 15 to 50 years. There is no definite first-line treatment, but general measures like smoking cessation, wound care, and pharmacological measures like anticoagulants and antiplatelets have shown good results.