头颈部是囊肿的多发部位。该文描述了两例罕见的囊性病变。例１是鼻腔钙化的粘液储留囊肿，例２是上颌窦内额外牙舍牙囊肿。例１，女，２６岁，左鼻渐进性鼻阻两年伴涕中带血１年，无外伤史。查体见鼻中隔右偏，左鼻腔内息肉样肿物，质硬，上外侧不能通过探针，手指触诊似碎鸡 Head and neck are multiple parts of the cyst. This article describes two rare cystic lesions. Example 1 is nasal calcified mucus cysts, and Example 2 is an extra dental floss cyst in the maxillary sinus. Example 1, female, 26 years old, left nasal progressive nasal resistance with two years of bloody 1 year with no history of trauma. Check see nasal septum right deviation, left nasal polypoid mass, hard, the outer can not pass the probe, finger palpation like shredded chicken