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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
The open biopsy procedure was notable for the tumor’s propensity to bleed easily upon touch (A), which is consistent with its highly vascularized nature. (B) Upper: Melan A staining; Lower: HMB45 staining.