J Clin Aesthet Dermatol. 2020;13(6):40–42 by Christopher White, DO; Maheera Farsi, DO,
Background. Dr. Frederic Mohs believed that surgery can spread a melanoma; to prevent this, he applied an inactive black paste vehicle containing the active ingredient 50% zinc chloride solution to melanomas to kill and fix (i.e., preserve) tissue; this is termed fixed-tissue surgery.
J Clin Aesthet Dermatol. 2020;13(1):41–43 by Dante Garcia, MD; Itisha S. Jefferson,