case_images: PMC7518490_01
case_images: Mass arising from the left side of the septum (anteriorly)
case_images: NJMS-11-136-g001.jpg
case_images: PMC7518490_01_NJMS-11-136-g001.jpg
case_images: F1
case_images: A spur was seen inferiorly toward the right side, and the mass arising from the septum anterior to the inferior turbinate was also noted [Figure 1].
case_images: Histopathological examination showing biphasic cellular tumor composed of epithelial cells, few glandular structures, and stellate cells merging in hyalinized areas
case_images: NJMS-11-136-g002.jpg
case_images: PMC7518490_01_NJMS-11-136-g002.jpg
case_images: F2
case_images: Histological evaluation of the mass showed a biphasic cellular tumor composed of sheets of epithelial cells punctuated by a few glandular structures and stellate cells merging in hyalinized areas [Figure 2].
case_images: Immunohistochemistry positive for CK7
case_images: NJMS-11-136-g003.jpg
case_images: PMC7518490_01_NJMS-11-136-g003.jpg
case_images: F3
case_images: Pan-CK (AE1/AE3), P40, and focally expressed S-100 and smooth muscle actin (SMA) [Figures 3-5]. Proliferation index was 2%-3%.
case_images: Immunohistochemistry positive for P40
case_images: NJMS-11-136-g004.jpg
case_images: PMC7518490_01_NJMS-11-136-g004.jpg
case_images: F4
case_images: Pan-CK (AE1/AE3), P40, and focally expressed S-100 and smooth muscle actin (SMA) [Figures 3-5]. Proliferation index was 2%-3%.
case_images: Focally expressed smooth muscle actin
case_images: NJMS-11-136-g005.jpg
case_images: PMC7518490_01_NJMS-11-136-g005.jpg
case_images: F5
case_images: Pan-CK (AE1/AE3), P40, and focally expressed S-100 and smooth muscle actin (SMA) [Figures 3-5]. Proliferation index was 2%-3%.