Narrow palpebral fissure

Introduction Congenital cleft palate syndrome is characterized by less cleft palate. It is autosomal dominant. It may be that the embryo is 3 months before and after, due to the increase in the number of inhibitory development of maxillary processes, and the imbalance between the developmental factors of the outer nasal processes. Therefore, there is also an increase in the distance between the two eyes, and the outer point of the lower tear point. More common among Japanese.

Cause

It is autosomal dominant. It may be that the embryo is 3 months before and after, due to the increase in the amount of inhibitory factors of maxillary processes, and the imbalance between the developmental factors of the outer nasal processes.

an examination

Related inspection

Eye and sacral area CT examination ophthalmologic examination

Symptoms and signs compared with normal, the horizontal diameter of the cleft palate and the diameter of the upper and lower are obviously changed. Some have a cross diameter of only 13mm, and the upper and lower four passes are only 1mm. At the same time, there are a series of eyelids and facial development abnormalities, such as ptosis, reverse internal ecdysis, excessive distance of internal hemorrhoids, valgus valgus, low bridge of the nose, and poor development of the upper temporal margin. The face is very special.

Differential diagnosis

For cases with typical clinical manifestations, the diagnosis is not difficult, but for some patients with other parts of the body dysplasia, the exact diagnosis is not easy, because not all patients with typical ocular quadrilateral performance can be diagnosed as Crack narrow syndrome. Scholars have diagnosed patients with associated symptoms of dysplasia as other syndromes, such as Michels-syndrome, Marden-Walker syndrome, Schmartz-Jampel syndrome, Ohdo syndrome, etc. It is to determine whether the patient has a characteristic developmental disorder corresponding thereto.

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