We report a case of 40-year-old man who has small cell neuroendocrine carcinoma of ethmoid sinus with invasion of upper aspect of right maxillary sinus and medial aspect of right orbit.

• 我们报告一位原发筛骨腔小细胞神经内分泌癌的案例，肿瘤侵犯至右眼窝内侧及上颚鼻窦腔；