Nodular Melanoma
A nodular malignant melanoma. Picture used with kind permission from Stuart Waterston and the University of Aberdeen.
This lesion is a deeply pigmented nodule present on the leg of an elderly gentleman. The history and appearance strongly suggest the diagnosis of a nodular malignant melanoma. Note the signs of recent bleeding present around the superior border of the lesion.
Nodular melanoma arising from superficial component
Features
Clinically, this sub-type presents as a deeply pigmented (dark brown to black) papule or dome-shaped nodule. It may arise at a site of previous trauma. It is most commonly seen on the legs and trunk and can grow rapidly over a period of weeks to months. Early bleeding is frequent.
Incidence
Roughly 15-30% of malignant melanomas are of this type.
