PMID: 15354011Sep 9, 2004Paper

Endolymphatic sac tumor in a 4-year-old boy

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
Michael E KupfermanKen Kazahaya

Abstract

Endolymphatic sac tumors (ELST) are rare, low-grade, locally aggressive papillary neoplasms. We present a case of a 4-year-old boy with an ELST, the youngest described in the literature. A boy presented with a right-sided serous otitis media and sudden-onset right facial nerve palsy. An audiogram revealed right-sided profound sensorineural hearing loss. Radiographic imaging demonstrated a 3-cm expansile lytic lesion along the posterior face of the petrous bone. The patient initially underwent a right transmastoid-infralabyrinthine biopsy. Pathologic examination revealed a papillary lesion suspicious for an ELST. Subsequently, a transtemporal-transcochlear approach with intra-and extradural resection of the tumor was performed. The facial nerve was dissected and transposed anteriorly and preserved. Histopathologic and immunohistochemical studies confirmed the ELST. At his 6-month follow up, there is no evidence of recurrence and the facial nerve function has returned to Grade II palsy. ELST are rare tumors of the temporal bone. This is the youngest case of ELST reported. Presentation, evaluation, and management of ELST is discussed.

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Citations

Sep 14, 2011·Genetics in Medicine : Official Journal of the American College of Medical Genetics·Marie Louise Mølgaard PoulsenMarie Luise Bisgaard
Apr 5, 2012·Diagnostic Pathology·Yan-Hua SunMei-Quan Xu
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Sep 15, 2020·Chinese Neurosurgical Journal·Hongliang GeDezhi Kang

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