Acute retropharyngeal calcific tendinitis is a rare benign condition which is characterized by acute neck pain and stiffness, and dysphagia. In this report, we present 2 cases of retropharyngeal calcific tendinitis patients. The first patient complained of neck pain and stiffness. The second patient had neck pain and hypophonia. In both cases, CT and MRI of the cervical spine demonstrated prevertebral effusion of the upper cervical spine with calcification at C1-C2 level. Acute neck pain and stiffness improved with oral administration of nonsteroidal anti-inflammatory drug. Follow-up radiologic findings revealed the disappearance of prevertebral effusion and calcification. (J Korean Acad Rehab Med 2009; 33: 718-722)
