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Clinical features and treatment of endolymphatic sac tumor

Authors
 Seong Hoon Bae  ;  Seung-Seob Kim  ;  Sang Hyun Kwak  ;  Jin Sei Jung  ;  Jae Young Choi  ;  In Seok Moon 
Citation
 ACTA OTO-LARYNGOLOGICA, Vol.140(6) : 433-437, 2020-06 
Journal Title
 ACTA OTO-LARYNGOLOGICA 
ISSN
 0001-6489 
Issue Date
2020-06
Keywords
Endolymphatic Sac ; facial paralysis ; skull base neoplasms ; temporal bone ; von Hippel-Lindau disease
Abstract
Background: Endolymphatic sac tumor (ELST) is an extremely rare disease that does not have established clinical guidelines.Objective: To provide guidance for the diagnosis and management of ELSTs.Methods: We retrospectively reviewed the medical records of patients who were suspected to have a lesion in the location of endolymphatic sac. Seven patients were included. Histopathologic diagnosis confirmed five ELSTs and two other diseases.Results: All of the enrolled patients had hearing impairment. Facial palsy was found in four out of five patients with ELST, whereas none of the patients in other disease group showed facial palsy. CT and MRI findings were consistent with those in previous literatures; however, angiographic findings were not consistent with those previously reported. All patients underwent surgery. Recurrence occurred in two patients with ELST, although there was no visible remnant tumor after the operation. These patients were treated with stereotactic radiosurgery.Conclusion: Hearing impairment and facial palsy were representative symptoms of ELST. All ELSTs showed 'salt and pepper' signal in MRI T1-weighted images, and smaller tumors could have blood supply from AICA in the radiologic study. Complete surgical resection with optional stereotactic radiosurgery should be considered in ELST.HighlightsHearing impairment and facial weakness are remarkable symptoms of ELST compared to other diseases that invade the endolymphatic sac.All ELSTs showed 'salt and pepper' signal in MRI T1-weighted images.ELST less than 3 cm in diameter could have blood supply from AICA.A complete surgical excision with optional stereotactic radiosurgery is required.
Full Text
https://www.tandfonline.com/doi/full/10.1080/00016489.2020.1722855
DOI
10.1080/00016489.2020.1722855
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seung-seob(김승섭) ORCID logo https://orcid.org/0000-0001-6071-306X
Moon, In Seok(문인석) ORCID logo https://orcid.org/0000-0002-3951-5074
Jung, Jinsei(정진세) ORCID logo https://orcid.org/0000-0003-1906-6969
Choi, Jae Young(최재영) ORCID logo https://orcid.org/0000-0001-9493-3458
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/179433
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