Journal of Clinical Otolaryngology Head and Neck Surgery
The Busan, Ulsan, Gyeoungnam Branch of Korean Society of Otolaryngology-Head and Neck Surgery
원저

자연유양골절제의 전산화단층촬영 소견: 유양돌기절제술후 측두골 결손과의 비교

박철원1,*, 최준석1, 정승원1, 서인석1, 안경성1, 함창곡2
Chul Won Park1,*, Joon Suk Choi1, Seung Won Jeong1, In Suk Seo1, Kyung Sung Ahn1, Chang Kok Hahm2
1한양대학교 의과대학 이비인후과학교실
2진단방사선과학교실
1Department of Otolaryngology, College of Medicine, Hanyang University, Seoul, Korea
2Diagnostic Radiology, College of Medicine, Hanyang University, Seoul, Korea
*교신저자: 박철원, 133-792 서울 성동구 행당동 17 한양대학교 의과대학 이비인후과학교실 전화: (02) 2290-8580· 전송: (02) 2293-3335 E-mail: hyent@chollian.net

© Copyright 2000 The Busan, Ulsan, Gyeoungnam Branch of Korean Society of Otolaryngology-Head and Neck Surgery. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: May 01, 2000; Accepted: Nov 07, 2000

Published Online: May 31, 2020

ABSTRACT

Background and Objectives: To describe the CT findings of automastoidectomy caused by cholesteatoma, and to evaluate the natural course of cholesteatoma by comparing it with the postmastoidectomy defect of the temporal bone. Materials and Methods: We retrospectively reviewed the CT findings of 21 cases of automastoidectomy in 17 patients with cholesteatoma and of 19 cases of postmastoidectomy in 16 patients. Results: 1) In automastoidectomy, the posterior walls of bony defects of the temporal bone were thinner (mean thickness in automastoidectomy/postmastoidectomy : 2 mm/3.5 mm and smoother (n=l4) than postmastoidectomy cases (n=8). 2) Defects of the posterosuperior wall of the bony external auditory canal were present in all cases of automastoidectomy (100%). 3) There were gross defects of the lateral bony cortex of the mastoid (68%), Henle’s spine (100%) in cases of postmastoidectomy, but in some cases of automastoidectomy (19%, 24%). 4) There were soft tissue densities within the bony defect and sinus tympani in all cases of automastoidectomy (100%) and in some cases of postmastoidectomy (63% and 37%). Conclusion: When comparing automastoidectomy and postmastoidectomy, CT findings concerning bony defects were different with regard to the remaining posterior wall, the extent of bony defect, and the presence of findings which suggested an active disease process. These differences are helpful in differentiating automastoidectomy and postmastoidectomy and in understanding the natural course of cholesteatoma. Background and Objectives: Since the concept of functional sinus surgery and optical aids such as. (J Clinical Otolaryngol 2000;11:222–229)

Keywords: 측두골 전산화단층촬영; 진주종; 자연유양 골절제술; 유양돌기절제술후
Keywords: Temporal bone CT; Cholesteatoma; Automastoidectomy; Postmastoidectomy