Basal cell carcinoma arising in a tattoo

Area of Science:

• Dermatology
• Oncology
• Pathology

Background:

• Basal cell carcinoma (BCC) is the most common type of skin cancer.
• Malignancy arising in tattoos is rare, with only four previous cases of BCC reported.
• Tattooing involves introducing pigments into the dermis, potentially interacting with cellular processes.

Observation:

• This report presents the fifth documented case of basal cell carcinoma (BCC) developing within a tattoo.
• The BCC in this case arose in a tattoo located on a body site not typically exposed to significant ultraviolet (UV) radiation.
• The patient's history and tattoo characteristics were evaluated.

Findings:

• The development of BCC in a tattoo, even in a sun-shielded area, suggests factors beyond UV exposure may contribute to carcinogenesis.
• This case adds to the limited evidence linking tattoos to potential oncogenic transformation.
• Histopathological examination confirmed the diagnosis of basal cell carcinoma.

Implications:

• Further research is needed to understand the mechanisms by which tattoos may influence skin cancer development.
• Clinicians should be aware of the possibility of malignancy in tattoos, regardless of sun exposure.
• This finding may prompt a re-evaluation of tattoo safety and long-term health risks.