case_images: PMC6083646_01
case_images: Microscopic examination of the labial mass reveals multiple foci of endometriosis (4x).
case_images: CRIPA2018-4263104.001.jpg
case_images: PMC6083646_01_CRIPA2018-4263104.001.jpg
case_images: fig1
case_images: The labial mass contained focal atypical endometriosis on a background of benign endometriosis (Figures 1 and 2).
case_images: Microscopic examination shows a focus of endometriosis in the labial mass that lined by endometrial cells with cytologic atypia (10x).
case_images: CRIPA2018-4263104.002.jpg
case_images: PMC6083646_01_CRIPA2018-4263104.002.jpg
case_images: fig2
case_images: The labial mass contained focal atypical endometriosis on a background of benign endometriosis (Figures 1 and 2).
case_images: A hard consistency mass at the right labia majora extending to the right groin with ulceration.
case_images: CRIPA2018-4263104.003.jpg
case_images: PMC6083646_01_CRIPA2018-4263104.003.jpg
case_images: fig3
case_images: However, the mass developed into an ulcer and rapidly increased in size (Figure 3).
case_images: Microscopic examination displays the papillary growth structures lined by round tumor cells with clear cytoplasm and pleomorphic nucleoli (4x(a) and 10x (b)).
case_images: CRIPA2018-4263104.004.jpg
case_images: PMC6083646_01_CRIPA2018-4263104.004.jpg
case_images: fig4
case_images: The pathologic examination showed a papillary growth structure lined by round tumor cells with clear cytoplasm and pleomorphic nucleoli (Figure 4).  Figure 5 shows residual atypical endometriosis that had merged with the tumor.
case_images: Microscopic examination shows part of a tiny cyst lined by cuboidal cells with atypical nuclei that had merged with the tumor indicating residual foci of atypical endometriosis (10x).
case_images: CRIPA2018-4263104.005.jpg
case_images: PMC6083646_01_CRIPA2018-4263104.005.jpg
case_images: fig5
case_images: The pathologic examination showed a papillary growth structure lined by round tumor cells with clear cytoplasm and pleomorphic nucleoli (Figure 4).  Figure 5 shows residual atypical endometriosis that had merged with the tumor.