The term "cutaneous" refers to the skin. Subcutaneous means beneath, or under, all the layers of the skin. For example, a subcutaneous cyst is under the skin.
A cyst is a closed pocket or pouch of tissue. It can be filled with air, fluid, pus, or other material.
Gawkrodger DJ, Ardern-Jones MR. Microanatomy of the skin. In: Gawkrodger DJ, Ardern-Jones MR, eds. Dermatology: An Illustrated Colour Text . 6th ed. Philadelphia, PA: Elsevier; 2017:chap 1.
Review Date: 8/22/2016
Reviewed By: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.