Cervical ectopic thymic cyst: a rare preoperative diagnosis.

We present a case of a 5-year-old child with a painless swelling on the neck. Imaging revealed a multilocular cystic lesion lying in close proximity to carotid vessels. Based on imaging a possibility of ectopic thymic cyst was considered, which was confirmed on histopathology. Ectopic cervical cyst is an infrequent cause of neck cyst in a child which is rarely diagnosed preoperatively.