Fig. 9
From: Vascular lesions of the head and neck: an update on classification and imaging review
Macrocystic lymphatic malformation. A 2-year-old male with right neck mass. a US demonstrates a complex multiloculated cystic mass without internal vascularity. b Axial T1 pre-contrast image better demonstrates the multiloculated cystic mass, which has fluid-fluid levels (arrow). c Axial T1 post-contrast fat-saturated image demonstrates enhancement of the walls and septa (arrowhead). However, there is no internal enhancement within the lesion