This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Plastic Surgery and Skin Lesions, Subject name: Surgery
The most malignant form of malignant melanoma is: 
Select and explain. 
A. Nodular, B. Lentigo maligna, C. Acral lentiginous type, D. Superficial spreading
A: Nodular
Answer: A: Nodular 
Explanation: Types of Malignant Melanoma *Superficial spreading : MC type of MM; MC site is Torso. *Nodular: 2nd MC type* Most malignant* Only veical growth phase* MC site - Head and Neck *Lentigo maligna: Least malignant; MC site is Face *Acral lentiginous : Least common , worst prognosis . MC site : Sole , under great toe nail Only FDA approved adjuvant therapy for malignant melanoma -Interferon alpha 2b