An acrochoron (a.k.a. skin tag, pedunculated papilloma or fibroepithelial polyp) is a small benign tumor that forms primarily in areas where the skin forms creases, such as the neck, armpits and groin. They may also occur on the face, usually on the eyelids. Though larger have been seen, they usually range in size from grain of rice to that of a golf ball. The surface of acrochordons may be smooth or irregular in appearance. They are often raised from the surface of the skin on a fleshy stalk called a peduncle. Microscopically, an acrochordon consists of a fibrovascular core, sometimes also with fat cells, covered by an unremarkable epidermis. Since they also contain nerve cells, acrochordons cannot be painlessly removed without anesthesia (usually local).