Post-operative Mastoid Cyst and Cholesterine Granuloma

Tetsuo Watanabe; Noritake Watanabe; Noritsugu Kaneda; Goro Mogi

doi:10.11289/otoljpn1991.3.190

Otology Japan

Online ISSN : 1884-1457
Print ISSN : 0917-2025
ISSN-L : 0917-2025

Post-operative Mastoid Cyst and Cholesterine Granuloma

Tetsuo Watanabe, Noritake Watanabe, Noritsugu Kaneda, Goro Mogi

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Keywords: post-operative mastoid cyst, cholesterine granuloma, immunohistochemical features

JOURNAL FREE ACCESS

1993 Volume 3 Issue 2 Pages 190-193

DOI https://doi.org/10.11289/otoljpn1991.3.190

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Abstract

We have experienced 3 cases of post-operative mastoid cyst (48, 30 and 23-year-old females). Thehistochemical and immunohistochemical features in mastoid cyst were not different from those of 3 cases ofcholesterine granuloma. Therefore, both post-operative mastoid cyst and cholesterine granuloma may beattributed to common pathophysiological factors. The isolation of mastoid cells caused by post-operativeblockage of the epitympanum and aditus with granulation tissues may produce post-operative mastoid cyst.

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