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An 88-year-old man developed atypical flat warts with human papilloma virus (HPV) during treatment with prednisolone.
The man, who suffered from a ureteral cancer and interstitial pneumonia, was treated with oral prednisolone 10 mg/day for 4 years. He presented with a 1 year history of scaly nodules on his lower legs. His physical examination showed multiple scaly...