Carcinoid Tumor Arising in Mature Teratoma of the Anterior Mediastinum-A Case Report

除了性腺外，縱膈腔是生殖細胞瘤最好發的位置約佔百分之二至六。縱膈腔之成熟畸胎瘤大多是良性病變。縱膈腔之成熟畸胎瘤不像是睾九丸胎瘤可觀察到的轉移潛力且可經由單獨外科切除治癒。大部分縱膈腔畸胎瘤是良性的，百分之十五至二十是惡性腫瘤，如不成熟畸胎瘤、成熟畸胎瘤併惡性轉形、畸胎瘤共存的混合生殖細胞瘤。在大部分的病變中是藉由常規胸部X光檢查發現，近三分之二的病患有特殊症狀。常見的症狀是因為鄰近構造被壓迫到或被侵犯到，如胸痛、咳嗽、呼吸急促。在英文文獻裡，過去的幾十年中只有兩個病例被發表過。在此我們提出一位自前縱膈腔之成熟畸胎瘤的冑腸道細胞產生之類癌瘤，並回顧歷年來與此病例相關的文獻報告。

關鍵字

類癌瘤；縱膈腔腫塊；畸胎瘤

並列摘要

Apart from the gonads, the mediastinum is the most frequently involved site of germ cell tumors, accounting for about 2-6% of these neoplasms. Mature teratomas of the mediastinum are benign lesions. They do not have the metastatic potential observed in testicular teratoma, and are cured by surgical resection alone. Most teratomas of the mediastinum are benign and only 15-20% account for malignant neoplasms, such as immature teratomas, mature teratomas with malignant transformation, or teratomas concomitant to mixed germ cell tumors. Many lesions are found on routine chest X-rays, and nearly two-thirds of patients have specific symptoms. The most common symptoms are chest pain, cough, and dyspnea caused by compression or invasion of contiguous structures. Only 2 cases have been published in the past decades. We present a case of mature teratoma of the anterior mediastinum with carcinoid tumor arising in association with gastrointestinal epithelium, confined to the mass, and review the associated literature.

並列關鍵字

carcinoid tumor ； mediastinal mass ； teratoma

國際替代計量

Carcinoid Tumor Arising in Mature Teratoma of the Anterior Mediastinum-A Case Report

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