A Case of Nasal Schwannoma in a Pediatric Patient

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  • 小児鼻腔神経鞘腫例
  • ショウニ ビコウ シンケイ サヤ シュレイ

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Abstract

<p>Schwannoma is a benign tumor of Schwann cell origin. It arises in the soft tissues, such as the subcutaneous tissue and muscle, in most cases, and is rarely found in the nasal cavity. We report a case of nasal schwannoma in a pediatric patient. A 14-year-old male patient have presented with a history of epistaxis and nasal mucus discharge ever since he was a little child. Physical examination showed a tumor in the right nasal cavity. Computed tomography demonstrated a tumor in the right nasal cavity compressing the nasal septum, with no bone destruction. Biopsy indicated the diagnosis of hemangioma and we decided to remove the entire tumor. While most of the tumor was removed by endoscopic surgery under general anesthesia, small amounts of colorless fluid flowed out in a pulsatile manner after the mucous membrane around the base was incised, and we could not remove the base of the tumor completely, because the possibility that the leaking fluid represented cerebrospinal fluid leakage could not be excluded. The histopathological diagnosis was Antoni A type schwannoma. The postoperative course was uneventful, with the patient showing no signs of recurrence or nervous symptoms until the last follow-up at 18 months after the surgery. Schwannomas do not have characteristic macroscopic or imagining findings, and the possibility of schwannoma should be considered in the differential diagnosis in patients presenting with a nasal tumor.</p>

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