This video showcases a great side view dissection of a deep core cut from the surface of the skin directly channeling down to a cyst imbedded in the fat tissue. You can see the pore connecting from the opening at the surface through the epidermis (very thin surface layer) through the thicker layer dermis, then into the cyst sitting in the adipose (fat) tissue.
Evolution of the blackhead part 2. Great visual dissection of the pathway from pore to cyst. Mr. PopZit 160226