PMC7649142_01
Fetal MRI of Twin A and Twin B. Twin A demonstrates a solid and cystic lesion at the floor of the mouth with obliteration of the oropharyngeal cavity (white arrow) while Twin B has the large epignathic teratoma arising from the oral cavity (black arrow).
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F1
A repeat fetal MRI was performed at 28 weeks, demonstrating substantial growth of oral lesions in both twins (see Figure 1). The pedunculated lesion occupied the oral cavity and floor of the mouth, extending along a pedicle to large 400 cc external component (Figure 1).