“…The abnormal migration of mesodermal cells between the gill arches or a failure of the mesenchyme to penetrate the midline may be another explanation 10 . It may or may not be associated with other congenital malformations, such as thyroglossal cyst, bronchogenic ectopic cyst, or cardiac lesions; however, in the reviewed literature, no report of CMCC was found as part of a defined syndrome 3,6,10,14,15 …”