Advanced Health Assessment Practice Exam

Which characteristic of malignant melanoma is indicated by asymmetry?

1. Irregular borders

2. Uniform color

3. Diameter less than 6mm

4. Asymmetrical shape

The correct answer is: Asymmetrical shape

Asymmetry is a key characteristic of malignant melanoma that indicates an abnormality in the growth of skin cells, often suggesting malignancy. In the context of skin lesions, asymmetrical shape refers to the unequal halves of a mole or spot when it is divided in the middle. In benign moles, there is typically symmetry, meaning both halves look the same. However, if a lesion has an uneven or asymmetrical shape, it raises the concern for melanoma, prompting further evaluation. In summary, the presence of asymmetrical shape in a skin lesion is a warning sign, as it indicates that the growth pattern could be atypical and possibly cancerous, aligning with the characteristics associated with malignant melanoma.