Department of Gynecology, Félix Guyon Hospital, 97400 Saint-Denis, Ile de la Réunion, France.

Case report

This is a case of a 20-year-old woman (G1P0), who was referred to our antenatal unit at 20 weeks of gestation for the cystic mass in the area of the right axilla.

Her previous ultrasound scan and nuchal translucency (NT) at 13 weeks and triple test were normal. Her family and personal history were non-contributive.

Our ultrasound scan revealed an axillary cystic lymphangioma on the right. The affected extremity was not moving during the entire exam. The left upper extremity looked normal.  

The follow-up ultrasound in 21 weeks showed that the lymphangioma increased in size and involved the right upper arm. No intrathoracic involvement was detected. Color Doppler did not show any blood flow in the solid parts of the mass. No other malformations were detected.

After an extensive counselling with a pediatric surgeon, the patient decided for the pregnancy termination.  The karyotype was normal, 46 XY. The pathologist confirmed our ultrasound findings.

Images 1- 4: 20 weeks, images of the axillary cystic lymphangioma.