Fast Five Quiz: Are You Able to Identify and Treat Melanomas?

Winston Tan, MD

Disclosures

June 02, 2015

The four major types of melanoma, classified according to growth pattern, are:

  • Superficial spreading melanoma. Constitutes approximately 70% of melanomas; usually flat but may become irregular and elevated in later stages; the lesions average 2 cm in diameter, with variegated colors as well as peripheral notches, indentations, or both.

  • Nodular melanoma. Accounts for approximately 15%-30% of melanoma diagnoses; the tumors typically are blue-black but may lack pigment in some circumstances.

  • Lentigo maligna melanoma. Represents 4%-10% of melanomas; the tumors are often larger than 3 cm, flat, and tan, with marked notching of the borders; they begin as small, freckle-like lesions.

  • Acral lentiginous melanoma. Constitutes 2%-8% of melanomas in light-skinned people and 35%-60% of melanomas in dark-skinned people; may appear on the palms and soles as flat, tan, or brown stains with irregular borders; subungual lesions can be brown or black, with ulcerations in later stages.

For more on the types of melanoma, read here.

Comments

3090D553-9492-4563-8681-AD288FA52ACE
Comments on Medscape are moderated and should be professional in tone and on topic. You must declare any conflicts of interest related to your comments and responses. Please see our Commenting Guide for further information. We reserve the right to remove posts at our sole discretion.
Post as:

processing....