case_images: PMC10629324_01
case_images: A 15-year-old boy, with a mass like "horn" came from acoustic externus.
case_images: SNI-14-382-g001.jpg
case_images: PMC10629324_01_SNI-14-382-g001.jpg
case_images: F1
case_images: The tumor tends to bleed easily [Figure 1].
case_images: Head computed tomography with contrast in axial view soft-tissue solid mass enhancement, irregular border, in the right jugular fossa, and exophytic.
case_images: SNI-14-382-g002.jpg
case_images: PMC10629324_01_SNI-14-382-g002.jpg
case_images: F2
case_images: The feeding vessels come from the segment temporalis superficial and posterior segment auricular artery from the right external carotid artery (ECA) [Figures 2 and 3].
case_images: Head computed tomography with contrast in coronal view, soft-tissue solid mass enhancement, irregular border, like in the right jugular fossa that exophytic to the middle ear, meso, and hypotympanum until right external meatus, with destruction in the right mastoid and right temporal.
case_images: SNI-14-382-g003.jpg
case_images: PMC10629324_01_SNI-14-382-g003.jpg
case_images: F3
case_images: The feeding vessels come from the segment temporalis superficial and posterior segment auricular artery from the right external carotid artery (ECA) [Figures 2 and 3].
case_images: Head magnetic resonance imaging with contrast axial and coronal view, there is hyperintense on T1-weighted image, a mass was seen destroying the right mastoid, right temporal bone, and part of the sphenoid, visible intracranial extradural extension.
case_images: SNI-14-382-g004.jpg
case_images: PMC10629324_01_SNI-14-382-g004.jpg
case_images: F4
case_images: There was an intracranial extradural extension. The mass compressed the right posterior fossa, right cerebellum, and right temporal lobe. The mass size was 7.8 x 6.7 x 6.6 cm extending to the right fossa jugular, with exophytic to the middle ear, mesotympanum, and hypotympanum until the right external meatus with feeding arteries from the superficial temporal segment and the posterior auricular artery segment of the right ECA branch [Figures 4-6].
case_images: Head magnetic resonance imaging with contrast axial and coronal view, hyperintense with prominent flow voids forming a salt and pepper image on T2-weighted image, unrestricted diffusion in the diffusion-weighted imaging area, which did not show contrast enhancement, a mass was seen destroying the right mastoid, right temporal bone and part of the sphenoid looks intracranial extradural extension.
case_images: SNI-14-382-g005.jpg
case_images: PMC10629324_01_SNI-14-382-g005.jpg
case_images: F5
case_images: There was an intracranial extradural extension. The mass compressed the right posterior fossa, right cerebellum, and right temporal lobe. The mass size was 7.8 x 6.7 x 6.6 cm extending to the right fossa jugular, with exophytic to the middle ear, mesotympanum, and hypotympanum until the right external meatus with feeding arteries from the superficial temporal segment and the posterior auricular artery segment of the right ECA branch [Figures 4-6].
case_images: The mass is seen feeding from the superficial temporal segment and the posterior auricular artery segment of the right external carotid artery branch.
case_images: SNI-14-382-g006.jpg
case_images: PMC10629324_01_SNI-14-382-g006.jpg
case_images: F6
case_images: There was an intracranial extradural extension. The mass compressed the right posterior fossa, right cerebellum, and right temporal lobe. The mass size was 7.8 x 6.7 x 6.6 cm extending to the right fossa jugular, with exophytic to the middle ear, mesotympanum, and hypotympanum until the right external meatus with feeding arteries from the superficial temporal segment and the posterior auricular artery segment of the right ECA branch [Figures 4-6].
case_images: (a) Pre Embolization and (b) Post embolization intra-arterial embolization were done at the maxillary artery, middle deep temporal branch, meningeal accessories artery, and occipital artery use 250 micron-355 microparticle.
case_images: SNI-14-382-g007.jpg
case_images: PMC10629324_01_SNI-14-382-g007.jpg
case_images: F7
case_images: We performed embolization using PVa 355-500 mm in the ECA branch to the occipital and superficial right temporalis arteries [Figure 7].
case_images: A small uniform primitive cell with round nuclei and scanty cytoplasm appearance.
case_images: SNI-14-382-g008.jpg
case_images: PMC10629324_01_SNI-14-382-g008.jpg
case_images: F8
case_images: The pathology examination showed EES characterized by small uniform primitive cells with round nuclei, scanty cytoplasm appearance, with positive in vimentin immunohistochemistry examination [Figure 8].