Vascular anomalies: A pictorial review of nomenclature, diagnosis and treatment

Figure 4 Cervicothoracic macrocystic lymphatic malformation. T1- (A) and T2-weighted (B) fat suppressed magnetic resonance images (MRI) demonstrate a macrocyst within the left neck that is predominantly hypointense on T1-weighted image and hyperintense on T2-weighted image. Trace blood products layering within the posterior aspect of the cyst are hyperintense on the T1 weighted image and hypointense on the T2 weighted image. Transverse ultrasound (C) demonstrates a predominantly anechoic macrocyst with layering low-level echoes, corresponding to blood products seen on MRI.