23/05/2022
FETAL CYSTIC HYGROMA @ NT scan
Fetal cystic hygromas are congenital malformations of the lymphatic system of the neck. They are thought to arise from failure of the lymphatic system to communicate with the azygos vein at around 8 weeks of gestation and, as they get larger, can cause nuchal and generalized edema. Ultimately this can affect venous return to the heart and cause hydrops through the jugular-lymphatic-obstructive-sequence (JLOS)
This lady had medical abortion later as the dual markers were also abnormal and supporting diagnosis .
Conclusion: rare diagnosis can pick up early and save later complications