Sarcoma is? a malignant tumor benign tumor squamous cell carcinoma o adenocarcinoma . A 63-year-old woman has been bothered by a discolored area of skin on her forehead that has not faded during the past 3 years. On physical examination, there is a 0.8-cm red, rough-surfaced lesion on the right forehead. A biopsy specimen examined microscopically. He was diagnosed with actinic keratosis. Which of the following is associated with actinic keratosis? Sheets of basaloid cells with keratin filled cysts Increased number of atypical melanocytes O Atypical basaloid cell nests in dermis Hyperplasia of basal cell and parakeratosis

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