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  • Title: [A case of subclavian paraganglioma in the superior mediastinum extending to the neck].
    Author: Yamashita R, Kawakami K, Kosugi M, Kobayashi C, Annen Y.
    Journal: Nihon Kyobu Geka Gakkai Zasshi; 1992 Jan; 40(1):108-12. PubMed ID: 1314275.
    Abstract:
    A 52-year-old female was admitted to our hospital with left anterior chest pain. On physical examination, an elastic hard mass sized in 3.0 x 2.5 cm was palpable at the left suprasternal area. Chest X-ray film showed a large mass shadow in the cervico-thoracic region, and CT films revealed a well-defined mass in the superior mediastinum which was heterogeneously enhanced by contrast medium. Operation was performed under the preoperative diagnosis of thymic tumor extending upwards. At operation, the tumor was located between the trachea and the left subclavian artery in the superior mediastinum displacing these structures and extending to the neck. Resected specimen which was 5.5 x 3.5 x 3.0 cm in size and 42 gm in weight was well encapsulated and highly vascularized. On microscopic findings, the tumor was finally diagnosed as paraganglioma. According to the classification of Glenner and Grimley, it was thought that the tumor originated from subclavian paraganglion in the superior mediastinum. Subclavian paraganglioma had rarely been reported in the literatures. As subclavian paraganglioma, our patient was the first reported case in Japan.
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