A metastatic melanoma in disguise
HOWEVER, knowing that the patient had previously had a groin node dissection for melanoma without a primary tumour, might be an alert. A dermatoscope allows viewing of the vessels. Here they were polymorphic rather than the pink structureless areas you see in a haemangioma.
This was an amelanotic metastatic melanoma. Careful examination showed three other similar lesions and some subcutaneous nodules as well on the same leg.
Metastases primarily localised to the limb where lymph glands have been removed is not uncommon but a PET scan should be performed