How would you manage this macule on the chest?

In this week's case discussion, submitted by A/Prof John Pyne, we look at a new, brown macule on the chest of a 49-year-old lady who states the macule has arisen over the past six months.

There was no precursor lesion and the lesion is solitary.

Please see several images below. What is your opinion here?

Dermoscopy image:

Confocal image:

Histopathology images:

Please leave your comments today and check back for the outcome from Wednesday 2pm AEDT.

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