[Diagnostic image (365). A man with facial hyperpigmentation].

Area of Science:

• Dermatology
• Cardiology
• Pharmacology

Background:

• Amiodarone is a potent antiarrhythmic drug widely prescribed for various cardiac arrhythmias.
• Long-term administration of amiodarone can lead to a spectrum of side effects, including dermatological manifestations.
• Facial hyperpigmentation is a recognized, albeit uncommon, adverse reaction associated with amiodarone therapy.

Observation:

• A 79-year-old male patient presented with a distinct blue-greyish facial hyperpigmentation.
• The patient had been receiving amiodarone treatment for a duration of four years.
• The onset and progression of the hyperpigmentation correlated with the period of amiodarone use.

Findings:

• The observed facial hyperpigmentation is consistent with amiodarone-induced skin deposition of the drug or its metabolites.
• Histopathological examination, if performed, would likely reveal characteristic features of amiodarone-related cutaneous changes.
• The discoloration is thought to result from the accumulation of iodine and amiodarone within dermal tissues.

Implications:

• This case highlights the importance of recognizing cutaneous side effects of amiodarone.
• Clinicians should monitor patients for dermatological changes during long-term amiodarone therapy.
• Awareness of this side effect is crucial for accurate diagnosis and patient counseling regarding potential cosmetic concerns and drug management.