A nurse is collecting data from a client who has AIDS. The nurse notes that the client has multiple, widespread purplish-brown skin lesions. The nurse should suspect that the client has developed which of the following types of skin lesions?

A. Kaposi's sarcoma (KS) is a vascular tumor commonly seen in clients with AIDS due to immunosuppression. It presents as multiple, purplish, brown, or reddish macules, plaques, or nodules, often on the skin but can also affect mucous membranes and internal organs. KS is linked to human herpesvirus-8 (HHV-8) and is considered an AIDS-defining illness. B. Actinic keratosis is a precancerous lesion caused by chronic sun exposure, appearing as rough, scaly, pink or brown patches. It is not associated with AIDS and does not present as widespread purplish-brown lesions. C. Actinic dermatitis is skin inflammation from prolonged UV exposure, characterized by redness, scaling, and itching, not purplish-brown vascular lesions. D. Basal cell carcinoma is a slow-growing skin cancer often appearing as pearly or translucent nodules, usually on sun-exposed areas. It is not common in AIDS patients and does not present as multiple widespread purplish-brown lesions.