Cukurova et al. Journal of Medical Case Reports 2012, 6:147 http://www.jmedicalcasereports.com/content/6/1/147 Page 3 of 4 Figure 2 Photograph of the nasopharyngeal mass. The nasopharyngeal mass was approximately 4 cm × 3 cm in size and was totally resected under local anesthesia via an endoscopic approach. lateral supraorbital ridge and nose. In the nose, they occur most commonly in the bridge and always in the midline. A few cases of dermoid cysts arising from the paranasal sinuses have been reported. The term hamartoma refers to an abnormal, oncologically benign proliferation of indi- genous tissues. The sinonasal tract, particularly the area of the nasal septum, is the most common site for hamarto- mas of the head and neck region. At the histological level, benign disorganized epithelium, salivary glands, muscle, and cartilaginous and vascular tissues are seen [4-7]. The ideal treatment for mature teratomas is total sur- gical excision. Sinonasal teratomas are associated with high mortality rates, despite the utilization of different modalities in the treatment. In our case, histopathological examination revealed epi- thelial and mesenchymal components, and the diagnosis of benign teratoma was established based on these findings. In the literature, benign teratomas arising from the nasal septum have only been described once in a young adult [8]. Conclusion The ideal treatment for mature teratomas is total surgi- cal excision. Sinonasal teratomas are associated with high mortality rates, despite the utilization of different modalities in the treatment. We present a rare case, along with a review of the related literature, in order to emphasize that a benign teratoma of the nasal septum should not be ignored. Figure 3 Histology of the nasopharyngeal mass. (A) Hamartomatous appearance resembling upper airway epithelium and consisting of septum bone frame, mucosa, mucosa-associated glands, and loose connective tissue stroma (hematoxylin and eosin (H&E), X40). (B) An epithelial component, loose connective tissue, and stroma-forming cystic structures were evident, partially covered with epithelial cells (H&E, X40).