A blackhead is also called an open comedo (single for comedone), and it is a clogged pore in the skin that is open to the air. Keratin (skin protein) and sebum (oil) combine to block the pore….
An epidermoid cyst (Epidermal Inclusion cyst, Infundibular cyst), is a benign growth commonly found in the skin and typically appears on the face, neck or trunk, but can occur anywhere on the body. Another name used is “sebacous cyst” but this is actually an antiquated misnomer, and is not a term used by dermatologists. They […]