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Click 21 years male with ruptured hydatid cyst of right biceps brachii muscle. Fat-suppressed axial PD-T2 weighted TSE images (1.5 T, TR - 4590, TE - 24, FA 150) showing the predominantly hyperintense signal within the cystic lesion. Coiled margins of detached endocyst are noted with 'Scroll appearance'. Edema is noted in the biceps muscle.

Click 21 years male with ruptured hydatid cyst of right biceps brachii muscle. Fat-suppressed coronal T1-weighted TSE images (1.5 T,TR - 550,TE - 20, FA - 145) showing pericyst of the lesion which appears intermediate to hyperintense.

Click 21 years male with ruptured hydatid cyst of right biceps brachii muscle. Coronal T2-weighted tru-FISP image (1.5 T,TR - 3.5, TE - 1.5, FA - 60) showing pericyst of the lesion which appears hypointense.