HIV positive 49 y/o male

 

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Doctor's Information

Name : Hamidreza
Family : Haghighatkhah
Affiliation :Radiology Department,Shohada Tajrish Hospital,SBMU
Academic Degree : Associate Professor of Radiology
Email : This email address is being protected from spambots. You need JavaScript enabled to view it.
Resident : masoud atyabi

 

Case Section

Neuroradiology

 

Patient's Information

Gender : Male
Age : 49

 

Clinical Summary

HIV positive patient with recent headache

 

Imaging Findings

two round lesions in corticomedullary junction of left parietal lobe and right occipital lobe, which are iso signal on T1 and low signal on T2 and FLAIR associated with severe peripheral edema , and ring enhancement with central nodular enhancement.

 

Differential Diagnosis

cerebral toxoplasmosis - lymphoma

 

Final Diagnosis

cerebral toxoplasmosis

 

Discussion (Related Text)

Features that favour primary CNS lymphoma include: single lesion, subependymal spread, solid enhancement ,thallium SPECT positive, increased choline (Cho) on MRS. Features that favour cerebral toxoplasmosis include: multiple lesions, scattered though basal ganglia and corticomedullary junction, ring or nodular enhancement, thallium SPECT negative, decreased choline (Cho) on MRS

 

References

CT and MRI of the whole body(haaga)2009/ch3

 

end faqaq

 

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