unless a medical provider could see those spots first-hand during an examination it would not be helpful for me to list the hundreds of possibilities that could result in "wrinkly spots". it would not be prudent to make a blind guess over the internet so i suggest that you see a dermatologist for an examination. a year is a long time.
dark spots on inside of arm opposite the elbow. what is it? . the spots are wrinkly and originated after a trip to the beach. i thought maybe a jellyfish stung me because there was mild irritation. almost a year later the spots have multiplied and darkened. what are the possible diagnoses?