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  Indian J Med Microbiol
 

Figure 2: Prenatal ultrasonography (US) imaging of the second fetus. (a) Abdominal US: The inner canthal distance (D1) is long, and the outer canthal distance (D2) is normal, and the transverse ocular diameters (D3 and D4) are significantly small. (b) Three-dimensional abdominal US: the palpebral fissure lengths (D1 and D2) are significantly short. (c) Abdominal magnetic resonance imaging (MRI): the transverse ocular diameters (D1 and D2) are significantly small. (d) MRI examination: the anterior–posterior ocular diameters (D1 and D2) are significantly small

Figure 2: Prenatal ultrasonography (US) imaging of the second fetus. (a) Abdominal US: The inner canthal distance (D1) is long, and the outer canthal distance (D2) is normal, and the transverse ocular diameters (D3 and D4) are significantly small. (b) Three-dimensional abdominal US: the palpebral fissure lengths (D1 and D2) are significantly short. (c) Abdominal magnetic resonance imaging (MRI): the transverse ocular diameters (D1 and D2) are significantly small. (d) MRI examination: the anterior–posterior ocular diameters (D1 and D2) are significantly small