Cecal schwannoma: A case report and literature review

Schwannomas are slow-growing tumors originating from Schwann cells and are rarely found in the gastrointestinal tract, particularly in the cecum. We report the case of a 59-year-old man who had recurrent diarrhea and was found to have a mass in the cecum during endoscopic examination. Contrast-enhanced abdominal computed tomography revealed a slightly hypodense, homogeneous mass in the cecum with moderate enhancement. The tumor was laparoscopically resected. Histopathological examination indicated spindle-shaped tumor cells arranged in a fascicular or palisading pattern, with minimal cellular atypia and rare mitotic figures. Immunohistochemical staining was positive for S100 and SOX10. The final pathological diagnosis was schwannoma. The patient was followed up for 34 months postoperatively without recurrence or metastasis. Cecal schwannoma is a rare benign neoplasm. We present this case and review the clinical and imaging features of previously reported cases of cecal schwannoma to enhance diagnostic accuracy and improve clinicians' understanding of this uncommon tumor.