|
|
See blackhead.
Blackheads are open comedones and whiteheads are closed comedones
a plugged sebaceous follicle containing sebaceous material, which is epithelial cell debris that prevents this material from getting to the external surface of the skin
a plugged sebaceous follicle with sebaceous material, epithelial cell debris like a small logjam that prevents this material from getting to the external surface of the skin and being removed
|
