CASE REPORT:
A 22-year-old primiparous woman with a 26.5-week pregnancy was referred to the maternal-fetal medicine department of the Colombia University Clinic for obstetric ultrasound due to the finding of a mass in the cervical region in anatomical detailed ultrasound. The patient had no significant history and normal prenatal control paraclinical findings. An ultrasound was performed in which a predominantly cystic mass was found with multiple septa inside, without color Doppler uptake, with dimensions of 32 x 26 mm in largest diameter, which goes from the lower cervical and left lateral area to the suprascapular region, suggesting as the first diagnostic possibility of lymphangioma, which is why it was decided to refer to the fetal anomalies board of the department for ultrasound evaluation.
She was evaluated at 28.2 weeks by the fetal anomalies board in which a fetus was found with a septated cervical and left lateral cystic lesion with growth towards the thoracic region with significant uptake on color Doppler, in addition to this finding an enlarged persistent left superior vena cava with effect from a shunt to a lesion described in the cervical region, thus defining that it was a hemangio-lymphangioma, with no secondary obstructive effect (FIGURE 1). The rest of the ultrasound evaluation was normal. It was then decided to call the patient for a follow-up in 3 weeks to assess the behavior of the lesion.