Microvascular occlusion

Microvascular occlusion refers to conditions that can present with retiform purpura.^[1] It has been suggested that phenylephrine may be a cause.^[2]

Microvascular occlusion
Specialty	Dermatology

Signs and symptoms

Microvascular occlusions appears as bland necrosis without inflammation and retiform purpura.^[3]

Causes

Microvascular occlusions can be caused by heparin-induced thrombocytopenia, cryoglobulinemia, angioinvasive organisms, embolization, disseminated intravascular coagulation, livedoid vasculopathy, cell occlusion syndromes, and iatrogenic causes.^[3]

Outlook

The outcomes of microvascular occlusions are usually influenced by the degree, length, nature of the underlying cause, and prompt and effective treatment.^[3]