Question:medium
What is the most common site for a lentiginous melanoma?
What is the most common site for a lentiginous melanoma?
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Acral lentiginous melanoma affects palms, soles, and nail beds; pick the most frequent of these.
Updated On: Jul 8, 2026
- Sole of foot
- Face
- Leg
- Trunk
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
The lentiginous melanoma being asked about is the acral lentiginous subtype, the one that grows on palms, soles, and under nails rather than on general skin.
Step 2: Key Formula or Approach:
Pick out, among palm, sole, and nail bed, which single site sees this melanoma most often.
Step 3: Detailed Explanation:
This subtype sticks to skin without hair follicles, meaning the palms, soles, and nail beds. Of these locations, the sole of the foot, especially the heel and pressure-bearing areas, is affected most often. Because it can look like a stain, callus, or old bruise, it is frequently caught late.
The face is where a sun-damage-related subtype called lentigo maligna melanoma tends to appear, a separate category from acral lentiginous melanoma.
The leg and trunk are typical spots for the far more common superficial spreading melanoma, not for the acral lentiginous form, which is defined by its palm, sole, and nail bed location.
Step 4: Final Answer:
Among acral sites, the sole of the foot is hit most often by acral lentiginous melanoma.
$\boxed{\text{Sole of foot}}$
The lentiginous melanoma being asked about is the acral lentiginous subtype, the one that grows on palms, soles, and under nails rather than on general skin.
Step 2: Key Formula or Approach:
Pick out, among palm, sole, and nail bed, which single site sees this melanoma most often.
Step 3: Detailed Explanation:
This subtype sticks to skin without hair follicles, meaning the palms, soles, and nail beds. Of these locations, the sole of the foot, especially the heel and pressure-bearing areas, is affected most often. Because it can look like a stain, callus, or old bruise, it is frequently caught late.
The face is where a sun-damage-related subtype called lentigo maligna melanoma tends to appear, a separate category from acral lentiginous melanoma.
The leg and trunk are typical spots for the far more common superficial spreading melanoma, not for the acral lentiginous form, which is defined by its palm, sole, and nail bed location.
Step 4: Final Answer:
Among acral sites, the sole of the foot is hit most often by acral lentiginous melanoma.
$\boxed{\text{Sole of foot}}$
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