A rather defined (2.2 x 1.6 x 1.5 cm) "popcorn ball like" lesion is noted at posterior portion of the pons along the midline inclined to the left side and partially encroaching upon the inferior aspect of the midbrain. It displays T1 heterogeneous intensity with multiple foci of hyperintensity, T2 hyperintense signal, with hypointense hemosiderin ring and few fluid-fluid levels. Following intravenous contrast injection the lesion shows modest enhancement. On SWI the lesion shows marked blooming. No other similar lesions seen. Mild mass effect is exerted manifested as indentation of the anterior aspect of the fourth ventricle.