Spontaneous cholesterol crystal embolization to bone marrow.

Cholesterol crystal embolization is a well-established complication of arterial trauma and anticoagulation which may involve multiple organs including the skin and muscle, producing clinical features such as livedo reticularis, cyanosis and gangrene of the toes and intense myalgias. Cholesterol crystal embolization to bone marrow has been described in postmortem studies, but has been previously reported premortem in only two patients, both of whom had characteristic risk factors and clinical features. We report herein a case of spontaneous cholesterol crystal embolization to bone marrow in a patient with atypical clinical manifestations.