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Click Ultrasound images of a 16-year-old male with localized cystic disease of the kidney presented with acute abdominal pain. The right kidney shows presence of multiple small simple cysts with relative sparing of the upper pole parenchyma. Right Kidney is mildly enlarged in size. The left kidney is normal in appearance. No cystic lesion is seen in liver and pancreas. (Transabdominal ultrasound, HD 11 XE Phillips, C5-2 probe)

Click Apparent diffusion coefficient (ADC) MR images of a 16-year-old male with localized cystic disease of the kidney presenting with acute abdominal pain. Cystic lesions are bright as fluid suggestive of no diffusion restriction. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 13333.3 TR, 72.2 TE, 90 degree Flip angle, 7 mm slice thickness, 8 US TORSOPA coil)

Click Diffusion weighted (DW) MR images of a 16-year-old male with localized cystic disease of the kidney presenting with acute abdominal pain. Cystic lesions are not showing any restricted diffusion. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 13333.3 TR, 72.2 TE, 90 degree Flip angle, 7 mm slice thickness, b value 1000, 8 US TORSOPA coil)

Click Axial T2 weighted MR images of a 16-year-old male with localized cystic disease of the kidney presenting with acute abdominal pain. Multiple variable size simple cysts are seen in the right kidney with thin walls. Renal parenchyma of the right lower pole is almost completely replaced by cystic lesions. Left kidney is normal in appearance. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 5647.06 TR, 77.792 TE, 90 degree Flip angle, 7 mm slice thickness, 8 US TORSOPA coil)

Click Axial T2 weighted fat suppressed MR images of a 16-year-old male with localized cystic disease of the kidney presenting with acute abdominal pain. Multiple variable size simple cysts are seen in the right kidney with thin walls. Renal parenchyma of the right lower pole is almost completely replaced by cystic lesions. Left kidney is normal in appearance. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 5647.06 TR, 77.792 TE, 90 degree Flip angle, 7 mm slice thickness, 8 US TORSOPA coil)

Click Axial post-contrast T1 weighted gradient MR images (excretory phase) of a 16-year-old male with localized cystic disease of the kidney presented with acute abdominal pain. Excretion of contrast medium is noted in bilateral pelvicaliceal systems. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 3 dimensional, 4.38 TR, 2.108 TE, 12 degree Flip angle, 4 mm slice thickness, 8 US TORSOPA coil, 0.2 ml/kg intravenous gadobenate dimeglumine given by hand injection, Multihance, Bracco diagnostics Inc.)

Click Axial pre-contrast T1 weighted gradient MR images of a 16-year-old male with localized cystic disease of the kidney presenting with acute abdominal pain. Multiple right renal cysts are seen. Cyst contents are hypointense similar to cerebrospinal fluid. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 3 dimensional, 4.38 TR, 2.108 TE, 12 degree Flip angle, 4 mm slice thickness, 8 US TORSOPA coil)

Click Axial post-contrast T1 weighted gradient MR images of a 16-year-old male with localized cystic disease of the kidney presented with acute abdominal pain. The cystic lesion does not show any wall enhancement, solid component or thick internal septation. Intervening normal enhancing renal parenchyma is noted between the cystic lesions. No lesions are seen in left kidney, liver, pancreas, or spleen. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 3 dimensional, 4.38 TR, 2.108 TE, 12 degree Flip angle, 4 mm slice thickness, 8 US TORSOPA coil, 0.2 ml/kg intravenous gadobenate dimeglumine given by hand injection, Multihance, Bracco diagnostics Inc.)

Click Coronal post-contrast T1 weighted gradient MR image of a 16-year-old male with localized cystic disease of the kidney presenting with acute abdominal pain. The cysts are more numerous in the right lower polar region with relatively spared upper pole. No cystic lesion is seen in the left kidney. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 3 dimensional, 4.372 TR, 2.104 TE, 12 degree Flip angle, 4 mm slice thickness, 8 US TORSOPA coil, 0.2 ml/kg intravenous gadobenate dimeglumine given by hand injection, Multihance, Bracco diagnostics Inc.)

Click Localizer T2 weighted coronal MR images of a 16-year-old male with localized cystic disease of the kidney presenting with acute abdominal pain. Multiple variable size simple cysts are seen in the right kidney with thin walls. Renal parenchyma of the right lower pole is almost completely replaced by cystic lesions. Left kidney is normal in appearance. (Protocol: 3-Tesla MRI Scanner, GE Healthcare, 2130.05 TR, 79.2 TE, 90 degree Flip angle, 8 mm slice thickness, 8 US TORSOPA coil)