• type
  • Additionally, rare forms of keratoacanthoma may spread (invade) aggressively below the skin level and into the lymph glands, and your doctor has no way to tell this type from the more common form. (skinsight.com)
  • wound
  • Removal (excision), in which the doctor uses a knife-like instrument (scalpel) to cut out the keratoacanthoma and then place stitches to bring the wound edges together. (skinsight.com)