case_images: PMC4886060_01
case_images: Endoscopic view of the Schwannoma.
case_images: CRIOT2016-8260629.001.jpg
case_images: PMC4886060_01_CRIOT2016-8260629.001.jpg
case_images: fig1
case_images: During her oropharynx and nasal endoscopic examination, a medium hard, semimobile, painless when pressed, and well-circumscribed mass, with 2 x 1 cm dimensions, was observed, originating from the nasopharynx and stretching downwards from the back of the soft palate (Figure 1).
case_images: Preoperative axial neck MR.
case_images: CRIOT2016-8260629.002.jpg
case_images: PMC4886060_01_CRIOT2016-8260629.002.jpg
case_images: fig2
case_images: Magnetic resonance (MR) examination revealed a vascular lesion with no high flow which starts from the nasopharynx and completely fills the choana (Figure 2).
case_images: Preoperative axial neck CT.
case_images: CRIOT2016-8260629.003.jpg
case_images: PMC4886060_01_CRIOT2016-8260629.003.jpg
case_images: fig3
case_images: In computed tomography (CT) examination, a nonhomogeneous lesion was seen which did not create an erosion in the peripheral tissues and did not reveal calcification (Figure 3).
case_images: Histopathological view of the Schwannoma.
case_images: CRIOT2016-8260629.004.jpg
case_images: PMC4886060_01_CRIOT2016-8260629.004.jpg
case_images: fig4
case_images: In histopathological examination, S100 (+) hyalinizing spindle cell mesenchymal tumor, Antoni A, Antoni B, and Verocay corpuscles were identified (Figure 4).