There’s a Scientific Name for that! (Dermatological Skin Terms to Know)

6 Jan

The next few posts will relate to Common Conditions of the skin, so here is a little dermatological glossary that may help!  Plus lots of Pictures!

I was going to put pictures, but some of this stuff is really gross!

Layers of skin:

 Epidermisthe upper dead layer.  Contains cells that produce melanin, which gives the skin it’s color. 

Dermisthe living lower layer.  Contains blood vessels, lymph vessels, hair follicles, and sweat glands (which regulate body temp and produce sebum- an oily substance that helps keep the skin from drying out)

Macule: a change in epidermal color.  any sort of flat lesion.  Group includes:

Vascular macules: red or purple spots that remain from former pimples.

Telangiectasia: A condition where small red, enlarged capillaries appear on the face and legs. (I’m not 100% sure, but I think this is those lil broken capillaries we get around our nose.)

Petechiae: tiny, pin-point, red spots from trauma

Hyper-pigmentated macules: sounds scary.. but it’s commonly known as “freckles.”

Solar lentigines: freckles resulting from sun damage

Comedone: commonly known as a blackhead.  It is a build up of dead cells within a follicle, held  together by solidified sebum.

Milia: commonly known as whiteheads.  Small epidermal cysts that are just under the surface of the skin.  Contain sebaceous secretions and buildup of dead cells, but are no necessarily associated with a follicle.  Common after skin resurfacing treatments such as dermabrasion, chemical peels, or laser resurfacing.

Papules raised lesions that are usually red bumps and can easily be felt when touched.  Acne is an example.  A pustule is an infected papule, and has a head with a white or yellow center, which is pus.  Pus is a fluid that is a mixture of dead white blood cells, bacteria, and blood.

Nodules:  is a solid bump you can feel, which is normally >1cm.

Cysts: pockets of fluid, infection or other matter under the skin.  In aesthetics, most common is the acne cyst.

One Response to “There’s a Scientific Name for that! (Dermatological Skin Terms to Know)”

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