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  • Title: Ectopic cystic thymoma associated with Raynaud's phenomenon.
    Author: Nomura T, Kawasaki T, Tanabe T, Azuma A, Matsubara H.
    Journal: Ann Thorac Cardiovasc Surg; 2007 Apr; 13(2):118-21. PubMed ID: 17505420.
    Abstract:
    Mediastinal cystic tumors are well-marginated round lesions that comprise 12% to 18% of all mediastinal masses. These lesions include a variety of diseases with overlapping radiologic appearances and variable prognoses. Pathological examinations are almost always required for differential diagnosis. We encountered a case of anterior mediastinal tumor discovered in the process of investigation of Raynaud's phenomenon. Taking into account the tumor location, a pericardial cyst was initially suspected. However, the tumor was surgically resected and histopathological examinations demonstrated thymus-like tissue in the cyst walls. Raynaud's phenomenon greatly improved after surgery. These findings suggested that cystic thymoma originated from ectopic thymic tissue and is accompanied by paraneoplastic syndrome.
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