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Cholesterol emboli pathology

Cholesterol embolism occurs spontaneously or following vascular surgery. Cutaneous manifestations range from purpura and livedo to ulceration and gangrene.

Histology of cholesterol emboli

Microscopically, clefts indicating the sites of cholesterol deposition are seen in arterioles and arteries in the dermis and subcutis. Fibrin thrombi often surround the cholesterol. There may be extensive surrounding necrosis.

Cholesterol emboli pathology

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Images provided by Dr Duncan Lamont, Waikato Hospital

Special studies in cholesterol emboli

Usually, none are required.

Differential diagnosis of cholesterol emboli

Deposits of atrial myxoma.

Deposit of material from intravenous injections (usually compounds mixed with illicit drugs).

 

References

• Weedon’s Skin Pathology (Third edition, 2010). David Weedon

On DermNet NZ

• Cholesterol emboli
• Dermatopathology index

 

Books about skin diseases

• Books about the skin
• Dermatology Made Easy book

 

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