PMC6313984_01
Fetal US by 29 weeks of gestation presenting a vascularized mass in fetal neck.
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A 28-year-old primigravida, without personal thyroid and autoimmune pathology or relevant family history (no consanguinity and unknown endocrine diseases in relatives), underwent prenatal ultrasonography (US) at 29 weeks' gestation, which revealed a high vascularized, bilobed, and symmetric mass in the anterior region of fetal neck (35 mm of largest diameter), suggesting fetal goiter (see Figures 1(a) and 1(b)).
Fetal MRI showing fetal thyroid diffuse enlargement (a: coronal view; b: sagittal view).
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fig2
To better evaluate the airway patency, a Magnetic Resonance (MRI) was performed at 31 weeks, and it suggested goiter with 39,5x26,7mm, involving and causing airway deviation, with no signs of polyhydramnios (see Figures 2(a) and 2(b)).
PMC6313984_02