Intrathoracic multiple schwannomas originating from a single intercostal nerve: Report of a case and review of the literature

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  • Teramoto Koji
    Department of Thoracic Surgery, Ijinkai Takeda General Hospital
  • Suzumura Yuji
    Department of Thoracic Surgery, Ijinkai Takeda General Hospital

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  • 同一肋間神経に多発した胸腔内神経鞘腫の一例

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Abstract

We report a case of intrathoracic multiple schwannomas originating in a single intercostal nerve. A 34-year-old man was admitted to our hospital for the treatment of a posterior mediastinal tumor, which had grown slowly during the follow-up period of 5 years and 5 months. Radiological examinations revealed a mass, 3 cm in diameter, with a regular margin located in the posterior mediastinum, which was suspected to be a neurogenic tumor. During surgery, the tumor was found along the right ninth intercostal space. In addition, a smaller tumor was noted near the larger one, and the two tumors originated from a single intercostal nerve. Both tumors were resected and histologically diagnosed as schwannomas with no malignant components. Intrathoracic schwannomas are solitary in general, and multiple cases, especially originating from a single nerve, are quite rare. Reports describing similar cases as ours are reviewed and discussed.

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