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Ectopic Thymus in the Middle Mediastinum: A Case Report and Literature Review

異位性中縱膈腔胸線瘤:個案報告及文獻回顧

摘要


在此提出的病歷報告是一位18歲年青的亞洲男性患有異位性中縱膈腔胸線併文獻回顧。回顧文獻,中縱隔腔中最常見的腫瘤是縱隔囊泡,支氣管性的囊泡,淋巴癌和心包膜囊泡。大多數的胸線組織都分佈在前縱隔或上縱隔這兩個區域,只有少於4%的胸線組織會落在這兩個地方以外。異生的胸線組織中又以生長在中縱隔的最少見。電腦斷層掃描對胸線組織的檢查有很高的敏感性和專一性。目前,最好的治療方式是外科手術切除。對於評估疾病預後,仍是以世界衛生組織擬定的病理分期和Masaoka學者所發表的腫瘤對鄰近組織侵犯程度分期為主要指標。(胸腔醫學2012;27:173-180)

並列摘要


The case of a young ethnic Chinese male who presented with rare ectopic thymic tissue in the middle mediastinum is reported and the related literature reviewed. The most common tumors found in the middle mediastinum are mediastinum cyst, bronchogenic cyst, lymphoma and pericardial cyst; most thymic tumors are found in the anterior-superior mediastinum area and less than 4% are found elsewhere. Ectopic thymic tumors in the middle mediastinum are the rarest. Computed tomography has high sensitivity and specificity for thymic tissue, and the gold standard treatment is radical resection. The World Health Organization histological grading and Masaoka staging system for thymoma remain the most important indicators for survival. (Thorac Med 2012; 27: 173-180)

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