SHH and cleft lip: The statistically significant moderate correlation between SHH-containing connective tissue cells and WNT3A-containing epitheliocytes in postnatal BCL tissue, which was also identified in the UCL tissue, again emphasizes the possible similarities between both cleft lip types while regarding the interactions of SHH and WNT signaling within the lip tissue because both SHH signaling and WNT signaling are tightly interconnected during orofacial development and growth process [30].