Abstract
Neurogenic tumors are the most common type of mediastinal tumor and constitute the majority of neoplasms of the posterior mediastinum. Schwannomas originating from the intrathoracic vagus nerve are extremely rare. The present study describes the case of a 58-year-old man with a large vagal schwannoma in the left superior mediastinum. A large tumor with a round shape was identified in the left superior mediastinum. The tumor originated from and encased the vagus nerve. Using video-assisted thoracoscopic surgery, the tumor was completely excised with amputation of the vagus nerve encased within in the tumor. One year post-surgery, the patient was free of recurrence with no symptoms other than hoarseness.
Highlights
The present study describes a rare case of a vagal schwannoma in the left superior mediastinum, which was resected en bloc using video‐assisted thoracoscopic surgery (VATS)
Schwannoma, termed neurilemmoma, is a type of benign nerve sheath tumor arising from Schwann cells
It is the most common neurogenic tumor of the chest and approximately 10% of schwannomas originate from the vagus nerve [3,4,5]
Summary
A chest roentgenogram revealed a well‐defined mass located at the left superior lung field, protruding from the mediastinum (Fig. 1). Contrast‐enhanced computed tomography of the chest showed a sharply demarcated, circumscribed mass, ~78x66x59 mm in size, in the left superior mediastinum (Fig. 2). The present study describes a rare case of a vagal schwannoma in the left superior mediastinum, which was resected en bloc using video‐assisted thoracoscopic surgery (VATS). The left phregnic nerve crossed the surface of the mass and the tumor was originating from, and encasing, the vagus nerve (Fig. 3). The tumor was completely excised through amputation of the vagus nerve encased in the mass. The tumor contained spindle cells with strong positivity for S‐100 protein and was diagnosed as schwannoma of the vagus nerve (Fig. 4). At the one‐year follow‐up, the patient was tumor‐ and symptom‐free, but presented with hoarseness
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