case_images: PMC5806283_01
case_images: Non-contrast (A, B) and contrast-enhanced (C, D) CT images. The mass was located lateral to the genioglossus and hypoglossus muscles and the submandibular gland was compressed and inferiorly displaced (arrow). Contrast-enhanced CT demonstrated enhancement of intratumoral blood vessels.
case_images: TODENTJ-12-12_F1.jpg
case_images: PMC5806283_01_TODENTJ-12-12_F1.jpg
case_images: F1
case_images: No evidence of cystic or necrotic degeneration was present in the CT (Fig. 1).
case_images: MR images showed homogeneous isointensity on T1-WI (A), heterogeneous hypointensity on T2-WI (B), heterogeneous hyperintensity on STIR (C), and heterogeneous enhancement on contrast-enhanced T1-WI (D). A clear capsule was observed on the margin (arrow).
case_images: TODENTJ-12-12_F2.jpg
case_images: PMC5806283_01_TODENTJ-12-12_F2.jpg
case_images: F2
case_images: T2-WI. The submandibular gland was compressed and displaced inferiorly (Fig. 2).
case_images: Dynamic MRI showed heterogeneous gradual increased enhancement. Regions of gradual increased enhancement were observed (red arrows).
case_images: TODENTJ-12-12_F3.jpg
case_images: PMC5806283_01_TODENTJ-12-12_F3.jpg
case_images: F3
case_images: The uptake of contrast medium was regionally slow (Fig. 3).
case_images: A: Intraoperatively, the tumor was well-encapsulated and continuous with the hypoglossal nerve (arrow). B, C: No cystification or necrosis degeneration was observed from the macroscopic features.
case_images: TODENTJ-12-12_F4.jpg
case_images: PMC5806283_01_TODENTJ-12-12_F4.jpg
case_images: F4
case_images: Intraoperatively, the tumor was well-encapsulated and continuous with the hypoglossal nerve (Fig. 4).
case_images: Histopathologic examination of the surgical specimen demonstrated a central mucous matrix and the surrounding nerve axon. Indicates Antoni type A of intermediate power field (A) and Antoni type B of intermediate power field (B). Each high power fields are (C) and (D). Antoni type A is composed of spindle shaped Schwann cells with elongated nuclei arranged in streams and nuclear palisades known Verocay bodies (arrow). Antoni type B consists of less spindle cells and have a myxoid background.
case_images: TODENTJ-12-12_F5.jpg
case_images: PMC5806283_01_TODENTJ-12-12_F5.jpg
case_images: F5
case_images: A and Antoni type B (Fig. 5). Antoni type A is composed of spindle shaped Schwann cells with elongated nuclei arranged in streams and nuclear palisades known Verocay bodies. Antoni type B consists of less spindle cells and a myxoid background.