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Prenatal Diagnosis of Oral Cyst Caused by Foregut Duplication

Prenatal diagnosis of oral cystic lesions is rare but is reported more frequently. The diagnosis of sublingual cyst is important because of the potential for airway obstruction. A rare case of a foregut duplication cyst associated with unilateral sclerocorneal microphthalmia is reported. The differential diagnosis and the limitations of the prenatal ultrasound and the postnatal MRI are discussed.