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Exogenous pigmentation by silver nitrate: Dermatological and toxicological aspects, case report
Ángela Londoño1, Camila Pérez1, Rodrigo Restrepo1
1Grupo de Investigación, Universidad CES, Medellín, Colombia. biomedica@ins.gov.co.
Biomedica : Revista Del Instituto Nacional De Salud
|July 2, 2021
Summary
Exogenous pigmentation from silver nitrate causes rare blue-gray skin lesions years after exposure. Diagnosis can be challenging due to similarity with melanoma, requiring careful evaluation.
Area of Science:
- Dermatology
- Toxicology
Background:
- Exogenous pigmentation is a rare condition caused by external agents.
- Silver nitrate exposure can lead to characteristic skin and mucosal discoloration.
Observation:
- A male patient presented with widespread blue-gray macules and plaques.
- The patient had a family history of melanoma.
- Lesions appeared years after potential silver nitrate contact.
Findings:
- The clinical presentation mimicked melanocytic lesions and melanoma.
- Differential diagnosis included melanoma, highlighting the diagnostic challenge.
Implications:
- This case underscores the importance of considering exogenous pigmentation in the differential diagnosis of suspicious skin lesions.
- Awareness of silver nitrate's potential for delayed, widespread pigmentation is crucial for accurate diagnosis and patient management.
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