Which of the following is the most common form of malignant melanoma?
The commonest type of melanoma is the superficial spreading melanoma (SSM). The melanoma progress through 3 phases: in situ, radial growth, veical growth. NB: A primary melanoma with no recognizable adjacent in situ or radial growth phase is nodular melanoma. Melanoma with similar prevalence in all ethnic groups- acral lentiginous Ref: Rook's textbook of dermatology, Edition-8, Page-54.45.
Nodular
Superficial spreading
Acral lentiginous
Mucosal