03/06/2026
🔍 What’s the diagnosis?
A 36-year-old woman with Fitzpatrick type I skin presents with an enlarging pigmented lesion on the posterior calf.
She reports previous sunburns and regular tanning bed use.
On examination, the lesion measures 1 cm and shows:
▪️ Asymmetry
▪️ Colour variegation
▪️ Irregular borders
🩺 What’s your diagnosis?
Explore the BMJ Best Practice topic here 👉 https://bestpractice.bmj.com/topics/en-gb/268