Patches of hyperkeratosis would typically present as thickening and roughening of the skin, which is not described in the case. This finding is more often associated with conditions such as psoriasis or actinic keratosis.

Crusting of the skin is typically indicative of an infectious process or an inflammatory skin condition, such as impetigo or eczema, rather than a neoplasm.

Hypopigmented macules would represent pale or white spots on the skin, which is not the case here. This feature is often seen in conditions such as vitiligo or tuberous sclerosis.

Atypical nevi are often irregular, unevenly pigmented, and larger than common nevi. They may resemble melanoma, and individuals with atypical nevi have an increased risk for developing melanoma. The patient's lesions have characteristics that could be suggestive of melanoma, such as irregular borders and varying shades of color. The presence of atypical nevi in such a patient would be of particular concern due to the risk of malignant transformation.