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Reclassification of aggressive adenomatous mastoid neoplasms as endolymphatic sac tumors
Author(s) -
Li John C.,
Brackmann Derald E.,
House John W.,
Lo William W. M.,
Carberry Joseph N.
Publication year - 1993
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-199312000-00004
Subject(s) - endolymphatic sac , pathology , medicine , temporal bone , choroid plexus , anatomy , inner ear , central nervous system
Abstract The emerging concept that aggressive adenomatous tumors of the temporal bone arise from the endolymphatic sac and constitute a distinct clinico‐pathologic entity merits wider recognition. These tumors share a common clinical pattern and exhibit consistent imaging and histopathologic features. Endolymphatic sac tumors (ELSTs) have been mistaken for other neoplasms such as paragangliomas, adenomatous tumors of mixed histology, ceruminomas, and choroid plexus papillomas. A review of the literature shows similarities among case studies of these aggressive adenomatous lesions. An analysis of the data supports the endolymphatic sac as an origin for these tumors. This report also presents an additional case of a less differentiated variant of this rare but important clinicopathologic entity.