Fig 5. Hemorrhagic thyroid cyst. A and B, Axial T1- and T2-weighted MR images, respectively, showing a small well-defined more or less rounded solitary nodule (arrow) affecting the right thyroid lobe. The nodule is hyperintense on both T1- and T2-weighted images. C, An ADC map image shows low signal intensity of the nodule. The measured ADC value is 0.5 ± 0.07 x 10–3 mm2/s.