骨盆诸骨见多发结节状、斑片状异常信号，范围较大者位于骶骨，截面大小约4

Multiple nodular and patchy abnormal signals were seen in the bones of the pelvis, and the larger one was located in the sacrum, with a cross-sectional size of about 4.9 X 2.2 cm; DWI and ADC images showed restricted diffusion, and enhanced scans showed obvious inhomogeneous enhancement. <br>A cystic non-enhancing fluid signal focus was seen behind the right femoral artery and vein, with a cross-sectional size of about 1.9 X 1.8 cm; DWI and ADC images showed no obvious diffusion restriction. <br>Long flaky T2 signals were seen in the skin and muscles of the left buttock, with unclear borders; enhanced scans showed obvious enhancement.

Multiple nodular and patchy abnormal signals can be seen in the pelvic bones, with larger areas located in the sacrum, with a cross-sectional size of approximately 4.9 X 2.2 cm; The DWI and ADC images show limited diffusion and significantly uneven enhancement in the enhanced scan.<br>A cystic non enhanced liquid signal lesion can be seen behind the right femoral artery and vein, with a cross-sectional size of approximately 1.9 X 1.8 cm; DWI and ADC images showed no significant diffusion limitation.<br>There are long T2 signals in the skin and muscles of the left buttock, with unclear boundaries; Enhanced scanning significantly enhances.

Multiple nodular and patchy abnormal signals were seen in pelvic bones, and the larger ones were located in sacrum, with a cross-sectional size of about 4.9 X 2.2 cm；. DWI and ADC images showed that diffusion was limited, and enhanced scanning was obviously uneven.<br> A cystic non-enhanced fluid signal focus was seen behind the right femoral artery and vein, with a cross-sectional size of about 1.9 X 1.8 cm；; DWI and ADC images showed no obvious diffusion limitation.<br> A strip of long T2 signal was seen in the skin and muscle of the left hip, and the boundary was unclear. Enhanced scanning is obviously enhanced.