Subcutaneous
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.
References
James WD, Elston DM, Treat JR, Rosenbach MA, Neuhaus IM. Cutaneous signs and diagnosis. In: James WD, Elston DM, Treat JR, Rosenbach MA, Neuhaus IM, eds. Andrews' Diseases of the Skin. 13th ed. Philadelphia, PA: Elsevier; 2020:chap 2.
Merriam-Webster's Medical Dictionary. Subcutaneous. www.merriam-webster.com/dictionary/subcutaneous. Accessed July 26, 2024.