Thymic tumours and dermoid cysts, although in the anterior mediastinum, may be closely related to the pulmonary trunk . 胸腺肿瘤和皮样囊肿，虽然位于前纵隔，也可与肺动脉段密切相连。
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Methods 8 cases of orbital dermoid cyst were analysed 方法对8例小儿眼眶皮样囊肿患者进行临床分析。
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Objective to study the clinical characteristics of children orbital dermoid cyst 目的探讨小儿眼眶皮样囊肿的临床特点。
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Result the orbital dermoid cyst occurs in one eye and mainly on superior temperal orbital rim 结果8例均单眼发病，囊肿多位于颞上方眶缘。
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Results : among all cases treated surgically , 4 cases were pleomorphic adenoma of the parotid gland ; 3 cases were malignant tumor of the parotid gland ; 1 case was zygomatic osteoma ; 4 cases were carotid body tumor ; 1 case was branchial cleft cysts ; 3 cases were cervical lymph node metastasis ; 2 cases were pharyngeal malignant tumor ; 4 cases were fibromatosis of the tongue ; 2 cases were dermoid cyst ; 2 cases were sublingual gland tumor 结果： 26例误诊病例，术前诊断腮腺?形性腺瘤4例，腮腺恶性肿瘤3例，颧骨骨瘤1例，颈动脉体瘤4例，鳃裂囊肿1例，恶性肿瘤颈淋巴结转移3例，咽部恶性肿瘤2例，舌部纤维瘤4例，口底皮样囊肿2例，舌下腺恶性肿瘤2例术后病理均证案为神经鞘瘤。
