Figure 4: Photograph of a keratoacanthoma arising within an area of the skin tattooed with red pigment.[94] Used under the terms of the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
![Figure 4: Photograph of a keratoacanthoma arising within an area of the skin tattooed with red pigment.<sup>[94]</sup> Used under the terms of the CC BY-NC-ND license (<a target=](articles/2019/5/1/images/IntJAcadMed_2019_5_1_19_256793_f4.jpg)
http://creativecommons.org/licenses/by-nc-nd/4.0/)">