oral medicine & Pathology

Amalgam Tattoo: Clinical Features, Incidence, Etiology, Diagnosis, Management

 

Amalgam Tattoo

(Focal argyrosis)

 

Clinical features

 

Black or bluish-black (usually) solitary, nonelevated small pigmented area beneath normal mucosa; usually related to lower ridge or buccal vestibule; more rarely palate and floor of the mouth.

It is asymptomatic and may rarely be radiopaque.

 

Incidence

 

Common: mainly in adults.

 

Aetiology

 

Amalgam particles or dust can become incorporated in healing wounds after tooth extraction or apicectomy or beneath mucosa (i.e. after an abrasion with a bur or elevator).

 

Diagnosis

 

May need to excise to exclude melanoma microscopically.

Differentiate from other causes of pigmentation, especially naevi and melanoma.

 

Management

 

The lesions are of no clinical importance but excision biopsy may sometimes be necessary to distinguish reliably from naevus or melanoma, or for aesthetic reasons.Amalgam tattoo