38-year-old woman with nasal congestion A rare case of septum-originated benign fibrous histiocytoma

Introduction: Benign fibrous histiocytoma (BFH) is a mesenchymal tumor composed of fibroblasts and histiocytes, which normally occurs in the bone tissue and/or the skin of the limbs. BFH of the nasal septum is rare worldwide. Patient concerns: A 38-year-old female patient attended our clinic with congestion in her right nasal cavity. Diagnoses: Endoscopic examination revealed a mass within the right nasal passage. Immunohistochemical staining demonstrated cells labeled with VIM (+), CD68PGM1 (+), CD34 (-), Actin (-), PCK (-), EMA (-), Desmin (-), SMA (-), S-100 (-), P63 (-), ALK-1 (-), beta-catenia (+), and KI67 (+). Clinical and histopathological examinations showed that the mass was a septum-originated BFH. Interventions: For the treatment of BFH of the nasal septum, the mass was removed endoscopically using a transnasal approach. Outcomes: No recurrence was observed over 30 months of follow-up. Conclusion: To prevent the recurrence wide local resection with histological clear margin and long-term follow-up with an endoscope are necessary.