TY - JOUR T1 - Malignant Peripheral Nerve Sheath Tumor in the Parapharyngeal Space: Tumor Spread through the Eustachian Tube JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 748 LP - 750 VL - 22 IS - 4 AU - Jeong Hyun Lee AU - Ho Kyu Lee AU - Choong Gon Choi AU - Dae Chul Suh AU - Kwang Sun Lee AU - Shin Kwang Khang Y1 - 2001/04/01 UR - http://www.ajnr.org/content/22/4/748.abstract N2 - Summary: We report the CT and MR findings in a patient with malignant peripheral nerve sheath tumor in the parapharyngeal space who had neither a family history nor stigmata of neurofibromatosis. A high-resolution CT scan of the temporal bone revealed bony erosion and widening of both the foramen ovale and the bony portion of the eustachian tube. A temporal bone MR image showed an intensely enhancing solid mass in the parapharyngeal space, which extended into the middle ear cavity via the eustachian tube. ER -