PAEA Surgery End Of Rotation (EOR) Practice Exam

Acral lentiginous melanoma primarily occurs in which areas of the body?

1. Face and neck

2. Hands, feet, and nails

3. Trunk and limbs

4. Scalp and ears

The correct answer is: Hands, feet, and nails

Acral lentiginous melanoma is a specific subtype of melanoma that is characteristically found in areas of the body that are often less exposed to sunlight. This type of melanoma primarily occurs on the hands, feet, and under the nails. The reasons for its occurrence in these areas relate to the anatomical and physiological characteristics of acral skin, which is thicker and has a different pigmentation response to UV exposure compared to skin found on more sun-exposed regions. This distinct tissue type may also contribute to the unique presentation and growth patterns of acral lentiginous melanoma, making it vital to increase awareness and screening in populations that may be more susceptible to this form of melanoma due to its atypical locations. Understanding that acral lentiginous melanoma does not typically occur in sun-exposed areas helps delineate it from other forms of melanoma, which are more common on the trunk, limbs, face, and neck. This knowledge is essential for both practitioners and patients in order to facilitate timely diagnosis and treatment.