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A previously fit and healthy 37-year-old gentleman presented to Casualty with left-sided weakness. Figure 1 Figure 2 Figure 3 Figure 4 The noncontrast CT head scan (Figure 1) shows a high attenuation area (white arrow) with calcification within the right frontal lobe deep white matter.MRI scan shows typical popcorn ball appearance with low signal intensity hemosiderin rim on T2W (Figure 2); bright locules of methemoglobin on T1W images (Figure 3); and low signal intensity blooming on Axial T2*GRE (Figure 4) due to paramagnetic effect of blood degradation product. What is the diagnosis?Answer

Summary

Abstract

Aim

Method

Results

Conclusion

Author Information

Han Seng Chew, Specialist Registrar - Radiology; Sujit Nair, Consultant Neuroradiologist. Department of Radiology, University Hospitals Coventry & Warwickshire, Coventry, United Kingdom

Acknowledgements

Correspondence

Sujit Nair, Consultant Neuroradiologist, Department of Radiology, University Hospitals Coventry & Warwickshire, Clifford Bridge Road, Coventry, CV2 2DX United Kingdom. Fax: +44 (0)24 76967139

Correspondence Email

drsnnair@hotmail.com

Competing Interests

Contact diana@nzma.org.nz
for the PDF of this article

View Article PDF

A previously fit and healthy 37-year-old gentleman presented to Casualty with left-sided weakness. Figure 1 Figure 2 Figure 3 Figure 4 The noncontrast CT head scan (Figure 1) shows a high attenuation area (white arrow) with calcification within the right frontal lobe deep white matter.MRI scan shows typical popcorn ball appearance with low signal intensity hemosiderin rim on T2W (Figure 2); bright locules of methemoglobin on T1W images (Figure 3); and low signal intensity blooming on Axial T2*GRE (Figure 4) due to paramagnetic effect of blood degradation product. What is the diagnosis?Answer

Summary

Abstract

Aim

Method

Results

Conclusion

Author Information

Han Seng Chew, Specialist Registrar - Radiology; Sujit Nair, Consultant Neuroradiologist. Department of Radiology, University Hospitals Coventry & Warwickshire, Coventry, United Kingdom

Acknowledgements

Correspondence

Sujit Nair, Consultant Neuroradiologist, Department of Radiology, University Hospitals Coventry & Warwickshire, Clifford Bridge Road, Coventry, CV2 2DX United Kingdom. Fax: +44 (0)24 76967139

Correspondence Email

drsnnair@hotmail.com

Competing Interests

Contact diana@nzma.org.nz
for the PDF of this article

View Article PDF

A previously fit and healthy 37-year-old gentleman presented to Casualty with left-sided weakness. Figure 1 Figure 2 Figure 3 Figure 4 The noncontrast CT head scan (Figure 1) shows a high attenuation area (white arrow) with calcification within the right frontal lobe deep white matter.MRI scan shows typical popcorn ball appearance with low signal intensity hemosiderin rim on T2W (Figure 2); bright locules of methemoglobin on T1W images (Figure 3); and low signal intensity blooming on Axial T2*GRE (Figure 4) due to paramagnetic effect of blood degradation product. What is the diagnosis?Answer

Summary

Abstract

Aim

Method

Results

Conclusion

Author Information

Han Seng Chew, Specialist Registrar - Radiology; Sujit Nair, Consultant Neuroradiologist. Department of Radiology, University Hospitals Coventry & Warwickshire, Coventry, United Kingdom

Acknowledgements

Correspondence

Sujit Nair, Consultant Neuroradiologist, Department of Radiology, University Hospitals Coventry & Warwickshire, Clifford Bridge Road, Coventry, CV2 2DX United Kingdom. Fax: +44 (0)24 76967139

Correspondence Email

drsnnair@hotmail.com

Competing Interests

Contact diana@nzma.org.nz
for the PDF of this article

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