case_images: PMC5350325_01
case_images: Photomicrograph of biopsy specimen of Case 1, showing the squamous cell carcinoma component (middle) and the adenoid cystic carcinoma component (upper left) (Hematoxylin and Eosin x100).
case_images: CRIPA2017-8401741.001.jpg
case_images: PMC5350325_01_CRIPA2017-8401741.001.jpg
case_images: fig1
case_images: Histopathological examination of the sampled material showed multiple fragments, some of which were composed of a squamous mucosa with a squamous carcinoma in situ (Figure 1).
case_images: Photomicrograph of biopsy specimen of Case 1, showing the adenoid cystic carcinoma component, cribriform pattern (HE x400).
case_images: CRIPA2017-8401741.002.jpg
case_images: PMC5350325_01_CRIPA2017-8401741.002.jpg
case_images: fig2
case_images: Tumor cells were small, basaloid with hyperchromatic nuclei and scant cytoplasm (Figure 2).
case_images: Immunostaining with CD 117: the adenoid cystic carcinoma cells are positive.
case_images: CRIPA2017-8401741.003.jpg
case_images: PMC5350325_01_CRIPA2017-8401741.003.jpg
case_images: fig3
case_images: On immunohistochemical study, ACC tumor cells showed positive staining with CD117 (Figure 3).
case_images: Immunostaining with P63: squamous cell component is positive (right), while adenoid cystic component is negative (left).
case_images: CRIPA2017-8401741.004.jpg
case_images: PMC5350325_01_CRIPA2017-8401741.004.jpg
case_images: fig4
case_images: P63 was negative in the adenoid cystic component and diffusely positive in the squamous cell carcinoma in situ (Figure 4).
case_images: PMC5350325_02