Portal de Periódicos da CAPES

Resection of an esophageal schwannoma with thoracoscopic surgery: a case report

2016; Springer Nature; Volume: 2; Issue: 1 Linguagem: Inglês

10.1186/s40792-016-0256-0

2198-7793

Takayoshi Watanabe, Tatsuya Miyazaki, Hideyuki Saito, Tomonori Yoshida, Yuji Kumakura, Hiroaki Honjyo, Takehiko Yokobori, Makoto Sakai, Makoto Sohda, Hiroyuki Kuwano,

Gastrointestinal disorders and treatments

Esophageal schwannomas are rare primary submucosal esophageal tumors. We herein report a case of an esophageal schwannoma that was difficult to diagnose.A 39-year-old woman presented with chief complaints of difficulty swallowing and epigastric pain. Enhanced computed tomography of her chest revealed a tumor mass at the upper thoracic esophagus with internal heterogeneity. 18-Fluorodeoxyglucose positron emission tomography/computed tomography showed a hypermetabolic appearance matching the tumor mass; the accumulation had a maximum standardized uptake value of 5.5. We performed endoscopic ultrasound-guided fine-needle aspiration biopsy under general anesthesia, but the small specimens obtained prevented a definitive diagnosis. Thoracoscopic esophagectomy was performed due to the large size of the tumor, suspicion of its malignant potential, and the patient's symptoms. Histopathological examination revealed spindle-shaped cells in a fasciculated and disarrayed architecture in the proper muscle layer. Immunohistochemical studies showed S100 protein positivity and the absence of CD34 and c-kit. We diagnosed the tumor as a benign schwannoma.We herein report a relatively rare case of schwannoma of the esophagus that was diagnosed with difficulty.