patient from Florida with a history of frequent sun tanning presents with a rough, scaly dermatologic lesion on sun-exposed areas such as the face, neck, or arms. The lesion is slightly elevated, has a scaly surface, and is occasionally pruritic. Potentia...

A patient arrives at the clinic with a raised, rough patch on their hand that has been gradually increasing in size. Symptoms include occasional itching and discomfort. Several potential diagnoses are considered, including actinic keratosis, psoriasis, ec...