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Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) axial. (b) coronal. (c) sagittal. CT scan of the pelvis with and without IV contrast, showing a large, expansile bony lesion originating from the right iliac bone. The bony lesion is measuring 11.6 x 12.8 x 8 cm. There are well-circumscribed calcified margins with some internal calcification. No cortical or medullary continuation are noted. The lesion is showing heterogenous densities with areas of septation. There are no associated soft tissue mass lesions noted. The acetabulum appears spared.
Technique: (a) Axial CT, without contrast, kVp 110, 217 mA, 1.2 mm slice thickness. (b) Coronal CT, 3 mm slice thickness, kVp 120, mA 349, Xenetix 100 ml IV. (c) Sagittal CT, 3 mm slice thickness, kVp 120, ma 349, Xenetix 100 ml IV. Contrast venous phase 90 seconds after contrast.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) axial. (b) coronal. (c) sagittal. CT scan of the pelvis with and without IV contrast, showing a large, expansile bony lesion originating from the right iliac bone. The bony lesion is measuring 11.6 x 12.8 x 8 cm. There are well-circumscribed calcified margins with some internal calcification. No cortical or medullary continuation are noted. The lesion is showing heterogenous densities with areas of septation. There are no associated soft tissue mass lesions noted. The acetabulum appears spared.
Technique: (a) Axial CT, without contrast, kVp 110, 217 mA, 1.2 mm slice thickness. (b) Coronal CT, 3 mm slice thickness, kVp 120, mA 349, Xenetix 100 ml IV. (c) Sagittal CT, 3 mm slice thickness, kVp 120, ma 349, Xenetix 100 ml IV. Contrast venous phase 90 seconds after contrast.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) Axial T1-weighted MRI of the pelvis, showing an expansile non-aggressive bony lesion in the right iliac bone with intermediate T1 signal intensity. (b) Axial T2-weighted MRI with fat saturation, showing heterogenous predominant high T2-signal intensity. (c) & (d) Axial and coronal T1-weighted with fat saturation after IV gadolinium administration, showing diffuse enhancement.
Technique: (a) Axial T1, TR 566, TE 20, slice spacing 5.579, machine 3 Tesla Philips Ingenia, 1.5 Tesla (b) T2 weighted SPAIR, TR 4664, TE 80, slice thickness 4.45, 1.5 Tesla (c) Axial T1 post gad: Dotarem 0.2 ml/kg, TR 653.7, TE 20, slice thickness 4.559. (d) T1 post gad: Dotarem 0.2 ml/kg, TR 697.7, TE 20, slice thickness 4, 1.5 Tesla.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) Axial T1-weighted MRI of the pelvis, showing an expansile non-aggressive bony lesion in the right iliac bone with intermediate T1 signal intensity. (b) Axial T2-weighted MRI with fat saturation, showing heterogenous predominant high T2-signal intensity. (c) & (d) Axial and coronal T1-weighted with fat saturation after IV gadolinium administration, showing diffuse enhancement.
Technique: (a) Axial T1, TR 566, TE 20, slice spacing 5.579, machine 3 Tesla Philips Ingenia, 1.5 Tesla (b) T2 weighted SPAIR, TR 4664, TE 80, slice thickness 4.45, 1.5 Tesla (c) Axial T1 post gad: Dotarem 0.2 ml/kg, TR 653.7, TE 20, slice thickness 4.559. (d) T1 post gad: Dotarem 0.2 ml/kg, TR 697.7, TE 20, slice thickness 4, 1.5 Tesla.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) Axial T1-weighted MRI of the pelvis, showing an expansile non-aggressive bony lesion in the right iliac bone with intermediate T1 signal intensity. (b) Axial T2-weighted MRI with fat saturation, showing heterogenous predominant high T2-signal intensity. (c) & (d) Axial and coronal T1-weighted with fat saturation after IV gadolinium administration, showing diffuse enhancement.
Technique: (a) Axial T1, TR 566, TE 20, slice spacing 5.579, machine 3 Tesla Philips Ingenia, 1.5 Tesla (b) T2 weighted SPAIR, TR 4664, TE 80, slice thickness 4.45, 1.5 Tesla (c) Axial T1 post gad: Dotarem 0.2 ml/kg, TR 653.7, TE 20, slice thickness 4.559. (d) T1 post gad: Dotarem 0.2 ml/kg, TR 697.7, TE 20, slice thickness 4, 1.5 Tesla.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) Axial T1-weighted MRI of the pelvis, showing an expansile non-aggressive bony lesion in the right iliac bone with intermediate T1 signal intensity. (b) Axial T2-weighted MRI with fat saturation, showing heterogenous predominant high T2-signal intensity. (c) & (d) Axial and coronal T1-weighted with fat saturation after IV gadolinium administration, showing diffuse enhancement.
Technique: (a) Axial T1, TR 566, TE 20, slice spacing 5.579, machine 3 Tesla Philips Ingenia, 1.5 Tesla (b) T2 weighted SPAIR, TR 4664, TE 80, slice thickness 4.45, 1.5 Tesla (c) Axial T1 post gad: Dotarem 0.2 ml/kg, TR 653.7, TE 20, slice thickness 4.559. (d) T1 post gad: Dotarem 0.2 ml/kg, TR 697.7, TE 20, slice thickness 4, 1.5 Tesla.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) axial CT scan. (b) coronal CT scan. A pelvis CT scan with and without IV contrast, re-demonstrating a large, expansile bony lesion originating from the right iliac bone. The bony lesion measuring 11.6 x 12.8 x 8 cm. There are well-circumscribed calcified margins with some internal calcification. No cortical or medullary continuation are noted. The lesion is showing heterogenous densities with areas of septation. There are no associated soft tissue mass lesions noted. The acetabulum appears spared.
Technique: (a) Axial CT, with IV contrast, kVp 120, mA 413, 1.2 mm slice thickness, Xenetix 100 ml IV, GE Medical System, Light Speed VCT. (b) Coronal CT, 3 mm slice thickness, kVp 120, mA 413, Xenetix 100 ml IV, 1.2 mm slice thickness. Contrast venous phase 90 seconds after contrast.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) axial CT scan. (b) coronal CT scan. A pelvis CT scan with and without IV contrast, re-demonstrating a large, expansile bony lesion originating from the right iliac bone. The bony lesion measuring 11.6 x 12.8 x 8 cm. There are well-circumscribed calcified margins with some internal calcification. No cortical or medullary continuation are noted. The lesion is showing heterogenous densities with areas of septation. There are no associated soft tissue mass lesions noted. The acetabulum appears spared.
Technique: (a) Axial CT, with IV contrast, kVp 120, mA 413, 1.2 mm slice thickness, Xenetix 100 ml IV, GE Medical System, Light Speed VCT. (b) Coronal CT, 3 mm slice thickness, kVp 120, mA 413, Xenetix 100 ml IV, 1.2 mm slice thickness. Contrast venous phase 90 seconds after contrast.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) Axial T1-weighted MRI of the pelvis re-demonstrated a mass lesion with well-defined borders that appeared to have marked chondroid matrix. The mass appears to exhibit a mass effect on the surrounding soft tissues showing an expansile non-aggressive bony lesion in the right iliac bone with intermediate T1 signal intensity. (b) Coronal stair MRI showing a heterogenous predominant high T2-signal intensity.
Technique: (a) Axial T1, TR 566, TE 20, slice spacing 4.55, machine 3 Tesla Philips Ingenia, SIEMENS, 1.5 Tesla. (b) Coronal Stair, TR 8940.8, TE 60, slice thickness 4, SIEMENS, 1.5 Tesla.


Click A 67-year-old female with fibrous dysplasia in the pelvis.
Findings: (a) Axial T1-weighted MRI of the pelvis re-demonstrated a mass lesion with well-defined borders that appeared to have marked chondroid matrix. The mass appears to exhibit a mass effect on the surrounding soft tissues showing an expansile non-aggressive bony lesion in the right iliac bone with intermediate T1 signal intensity. (b) Coronal stair MRI showing a heterogenous predominant high T2-signal intensity.
Technique: (a) Axial T1, TR 566, TE 20, slice spacing 4.55, machine 3 Tesla Philips Ingenia, SIEMENS, 1.5 Tesla. (b) Coronal Stair, TR 8940.8, TE 60, slice thickness 4, SIEMENS, 1.5 Tesla.