Schwannomas well-encapsulated benign tumors that originate from Schwann cells and are ordinarily solitary lesion. Diagnosis and treatment of benign neurogenic tumors usually requires complete excision of the tumor, because of doubt about the diagnosis, the increasing size of the tumor, and the possibility of malignancy, early surgical exploration and resection is a frequently accepted entire surgeons. A 38 years male patient who was diagnosed a mass lesion incidentally. The posterior mediastinum tumor located in left paravertebral region .We declare the report of one case incidentally diagnosed and given the advantages shown by the efficacy of this technique and their less invasive nature.
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