[Salivary gland choristoma in the middle ear].
[Salivary gland choristoma in the middle ear].
复制标题
[中耳唾液腺神经瘤]。
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
H. Münster
中科院分区：
文献类型：
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作者：
H. Münster
绒毛膜瘤是发生在异常部位的组织学正常组织的非肿瘤性增生。第一个已知的丹麦情况下，唾液腺绒毛膜瘤在中耳介绍。这是一种非常罕见的情况，仅报告了20例。一名16岁的男性被转诊到耳鼻喉科诊所，右耳听力损失为60-70 dB。鼓室探查术显示一分叶状肿块附着于面神经的水平部分，在镫骨外侧有异常的行程。砧骨和镫骨异常，无连续性。活检显示涎腺绒毛膜瘤。未尝试完全切除。术后，由于某种原因，传导性听力损失减少了20 dB。面神经功能正常。
A choristoma is a non-neoplastic proliferation of histologically normal tissue occurring at an abnormal site. The first known Danish case of a salivary gland choristoma in the middle ear is presented. This is a very rare condition of which only 20 cases have been reported. A 16-year-old male was referred to the ENT clinic with a 60-70 dB mixed hearing loss on the right ear. Exploratory tympanotomy showed a lobulated mass attached to the horizontal portion of the facial nerve, which had an abnormal course lateral to the stapes. The incus and stapes were abnormal with no continuity. Biopsy showed salivary gland choristoma. Complete excision was not attempted. Postoperatively the conductive hearing loss was for some reason reduced by 20 dB. The facial nerve function was normal.