Purpose: To describe the differential diagnosis between solitary cystic metastatic carcinoma from branchial cleft cyst and provide references for clinicians to treat cystic metastases from primary sites of the head and neck region.
Materials And Methods: Two cases of cystic metastatic nasopharyngeal carcinoma (NPC) are presented and a review of the relevant English literature on cystic metastasis from head and neck cancer was performed.
Results: Two adult patients with a lateral cystic neck mass were initially clinically diagnosed as branchial cleft cysts.