A nurse is performing skin cancer screening on a group of clients. Which of the following findings should the nurse identify as an indication of melanoma?
A.
Scaly lesion with a crusted appearance
B.
Raised lesion with a rolled border
C.
Reddened lesion with dilated blood vessels
D.
Flat lesion with irregular borders
The Correct answer and Explanation is:
The correct answer is D. Flat lesion with irregular borders.
Melanoma is one of the most serious forms of skin cancer and is characterized by certain distinct features. In the context of skin cancer screenings, the nurse should be particularly vigilant for lesions that exhibit asymmetry, irregular borders, varied color, a diameter greater than 6 millimeters, and any changes in size, shape, or color over time. These characteristics can be summarized by the ABCDE rule for melanoma detection:
- Asymmetry: One half of the mole does not match the other half.
- Border: The edges are irregular, ragged, notched, or blurred.
- Color: The color is not uniform and may include shades of brown or black, and sometimes patches of pink, red, white, or blue.
- Diameter: Melanomas are usually larger than 6 millimeters (about the size of a pencil eraser), but they can be smaller when first detected.
- Evolving: The mole or spot changes in size, shape, or color over time.
Among the provided options, a flat lesion with irregular borders fits the description of a melanoma, indicating that the lesion may have undergone transformation that raises concern for malignancy. The other options present characteristics more typical of benign or non-melanoma conditions:
- A. Scaly lesion with a crusted appearance: This could indicate a squamous cell carcinoma or actinic keratosis.
- B. Raised lesion with a rolled border: This description often aligns with basal cell carcinoma.
- C. Reddened lesion with dilated blood vessels: This may be indicative of conditions like rosacea or other inflammatory processes.
In summary, the identification of a flat lesion with irregular borders is a critical finding for the early detection of melanoma, emphasizing the importance of thorough skin cancer screenings in clinical practice. Regular monitoring and patient education on self-examination can significantly improve early detection rates.