26th April 2024

A 50-year-old woman presents with a concern about a mole on her right shoulder.

A 50-year-old woman presents with a concern about a mole on her right shoulder. She notes that the mole has changed in appearance over the past year, becoming asymmetric and variegated in colour. The lesion is now approximately 1.5 cm in diameter, with an irregular border and a mix of brown, black, and blue shades. She also mentions that the mole occasionally itches and has bled once. She has a history of frequent sunburns during her youth and no family history of skin cancer.

Which is the most likely diagnosis?