MR Diagnosis of Haemorrhagic Cystic Renal Cell Carcinoma

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We report two cases of cystic renal masses considered indeterminate on sonography and CT, in which haemorrhagic contents were demonstrated on MRI.

Materials and Methods

Spin echo T1-weighted axial and coronal (TR 700 ms; TE 17 ms) and T2-weighted axial (TR 3,000 ms; TE 90 ms) upper abdominal scans were obtained on a 1.5 T MR machine.


Cyst contents were of high signal on both T1− and T2-weighted sequences, indicating internal haemorrhage, which was confirmed at surgery.


There is a high propensity for haemorrhagic renal masses to mask carcinoma. By distinguishing blood from other contents, MRI had a noninvasive role in diagnosis and further management.

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