[The varied behavior of the nasal sinuses in cleft lip and palate with differing localization of the cleft (a radio-analytical study)].

Report on 301 radiographs of the paranasal sinuses of cleft patients and on 120 radiographs of the paranasal sinuses of subjects from a control group to illustrate the development of the maxillary and frontal sinuses. In female individuals as well as in male ones, the maxillary sinuses on the left side are greater than those on the right side. Aplasia of the frontal sinuses on the right side was observed in 11.7%; aplasia of those on the left side, in 3.3%. The maxillary sinuses on the side of the cleft are greater than those on the opposite side. In patients with clefts of the secondary palate, the maxillary sinuses are significantly greater than in patients with clefts of the primary palate or with subtotal or total clefts of the secondary palate. Aplasia of the frontal sinuses on the right side was seen in 11%; aplasia of those on the left side, in 6%.