Squamous cell carcinoma associated with a history of synthetic hair implantation: two case reports - Nicolas, Gregory; Tutihashi, Rafael Mamoru Carneiro; Emmanuel, Nancy; Jalbout, Jana Dib El; Takemura, Rafael Eiki; Ishida, Luiz Carlos; Busnardo, Fabio de Freitas; Gemperli, Rolf (JPRAS open, 2025)