Peer Reviewed
Perspectives on dermoscopy

A freckle on the foot

Nathan Curr, Alex J Chamberlain
Abstract
What is this irregularly shaped, pigmented lesion on the plantar surface of an elderly patient’s foot?
Key Points
    With sufficient training and expertise, clinicians can use dermoscopy to improve diagnostic accuracy for melanocytic lesions and other common skin tumours.
    Case presentation
    A 68-year-old man presented with a pigmented lesion on the plantar surface of his right foot (Figure 1), which he said had changed in colour and increased in size over the previous 12 months. The lesion measured 10 mm in maximum diameter and was irregularly shaped, with a mixture of colours including browns and black. Dermoscopy revealed an asymmetrical lesion with pigment aligned in a parallel ridge pattern (Figure 2).
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