Table 1: Pathologic findings of the parts of the congenital midline cervical cleft.

Congenital midline cervical cleft portion Epithelial structures Mesenchymal structures Cephalic skin tag Stratified squamous epithelium with parakeratosis Striated muscle overgrowth Midline cleft Stratified squamous epithelium with parakeratosis and no adnexae Bundles of striated muscle Striated muscle in the dermis Caudal end duct Squamous epithelium with parakeratosis superficially Pseudostratified ciliated epithelium of upper respiratory type at the bottom Seromucinous glands