Jeremy, a 25-year-old farmer, presents with a growing lesion on his hand.

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<p>Jeremy, a 25-year-old farmer, presents with a growing lesion on his hand.</p><p>He reports that it began a week ago as a small red lump. He has no recollection of any significant trauma but does mention he often gets a few abrasions while performing his general duties at work.</p><p>He has no significant medical history and takes no medications.</p><p>He remains systemically well, and although the lesion has become a little painful, he still has a full range of motion with the affected hand.</p>

Dr Paul Muthiah is a GP on the Central Coast, NSW, and medical co-editor of Australian Doctor.