Ceruloderma

Ceruloderma

Ceruloderma is a rare form of cutaneous hyperpigmentation characterized by a blue-grey skin discoloration, often occurring on sun-exposed areas like the face and neck. It arises from the dermal deposition of pigments, typically caused by chronic use of drugs like amiodarone (blue-grey syndrome) or underlying

Key Aspects of Ceruloderma:

• Clinical Features: The lesions appear as bluish, gray, or blue-grey macules and patches, often on the face, neck, or nasal bridge.
• Causes:
  • Drug-induced: Most commonly associated with long-term, high-dose amiodarone therapy. Other drugs, such as oral contraceptives or anti-malarials, and potentially proton pump inhibitors like omeprazole, have been implicated.
  • Dermal Melanocytosis: Benign conditions such as nevus of Ota, Ito, or blue nevus.
• Pathophysiology: Ceruloderma involves the accumulation of melanin or pigment complexes within the dermis.
• Management: Treatment mainly involves discontinuing the causative medication, though this may take months or years to reverse. Sun avoidance and protection are crucial. Laser therapy may be

Diagnosis:
Diagnosis is often clinical, based on history and appearance, but skin biopsy may be necessary to distinguish between increased melanin (melanocytic) and exogenous material (drug deposition).

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Amiodarone

Most classic drug cause.

Mechanism

• Drug and lipofuscin deposition in dermal macrophages
• Enhanced by sun exposure

Clinical features

• Slate-blue discoloration of sun-exposed skin (face, nose, cheeks)
• Occurs after long-term therapy (>400 mg/day cumulative exposure)

Reversibility

• Slowly fades after discontinuation (may take months–years).