keratosis
"Lesion on elbow, area of rough scaly skin, itchy. Doctor didn't know what it was, but had lesion surgically removed. It returned even bigger, about 20mm diameter. Saw specialist who did biopsy. Non malignant. Treated with Solaraze. Lesion changed to open sore. Stopped treatment until sore healed. Used Paw paw ointment to soften it. That worked. Resumed Solaraze. Other smaller lesions have appeared close by. Will see specialist soon for assessment."