Clinical characteristics of petrosal cholesteatoma and value of MRI-DWI in the diagnosis

Abstract

Background: Petrosal cholesteatoma is difficult to be diagnosed before operation. MRI-DWI can make the diagnosis more objective and accurate.

Objective: Analysis of incidences and clinical characteristics of petrosal cholesteatoma, and the value of MRI-DWI in this disease.

Materials and methods: The clinical manifestations, such as gender, hearing loss, vertigo, tinnitus, hemifacial spasm, facial paralysis, diplopia and ear leakage, and some images, such as CT and MRI of 81 patients with petrosal cholesteatoma were collected and analyzed retrospectively. And the Sanna classification of all the cases were also been analyzed.

Results: There were 76 cases of hearing loss. There were 16 patients with vertigo; 12 of headache; 23 of tinnitus; 7 of hemifacial spasm; 54 of facial paralysis; 44 of homolateral ear leakage. There were 57 cases of type Supralabyrinthine, 8 of type Infralabyrinthine, 5 of type Apical, 6 of type Infralabytinthine-apical and 5 of type Massive. There were 2 cases of inconsistency between admission diagnosis and discharge diagnosis.

Conclusions: The clinical manifestations of petrosal cholesteatoma are various, and sometimes it is difficult to differentiate it from other petrosal lesions. The combining with MRI-DWI and CT examination is necessary and has an advantage.

Chinese abstract

背景：岩骨胆脂瘤的术前诊断很难。MRI-DWI能使诊断更加客观、准确。

目的：分析岩骨胆脂瘤的发病率和临床特点, 以及MRI-DWI对该病的作用。

材料与方法：对81例岩骨胆脂瘤患者的性别、听力损失、眩晕、耳鸣、面肌痉挛、面瘫、复视、耳漏等临床表现及CT、MRI等影像资料进行回顾性分析。并且对所有病例的Sanna分类进行了分析。

结果：听力损失有76例。眩晕16例；头痛12例；耳鸣23例；面肌痉挛7例；面瘫54例；同侧耳漏44例。迷路上型57例；迷路下型8例；心尖型5例；唇尖下型6例；块状型5例。入院诊断与出院诊断不一致有2例。

结论：岩骨胆脂瘤临床表现多样, 有时难以与其他岩骨病变相区别。MRI-DWI和CT综合检查是必要的、有好处的。

Keywords:

• Petrosal cholesteatoma
• magnetic resonance imaging
• DWI sequence
• clinical characteristics

Disclosure statement

All the authors do not have a financial relationship with any organizations that sponsored the research. We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.