Fast growing red nodular tumour
This tumour on a 40 year old’s arm had grown rapidly over 3 months and had bled.
Dermoscopy is irrelevant and unhelpful. New firm growing pink or red tumours just need to be excised for histology without delay. Many, like this lesion, will be pyogenic granulomas. These tumours are benign but are very unpleasant and now and then one turns out to be something nastier.
Alternative diagnoses for new, firm, growing red nodular lesions are…
squamous cell cancer
cutaneous metastasis from an internal malignancy, e.g. lung, thyroid, breast, bowel etc. the primary cancer may be known or unknown (occult)
Merkel cell cancer (rare, but deadly)
Once again, dermoscopy is a helpful adjunct to skin lesion diagnosis but is not a substitute for basic history taking and examination skills and sometimes, especially for nodular lesions, is little or no help.