MRI
Axial T2
Axial FLAIR
Axial T1
Axial SWI
Axial DWI
Axial ADC
Axial MR Perfusion (CBV)
Axial SWI - phase
Coronal T1
Axial SWI - magnitude
Larger right parietal intra-axial calcified mass measuring up to 3.3 cm in size with an adjacent cystic component measuring 2.5 cm in maximal size. There is only minimal peripheral enhancement of the calcified component and no enhancement of the perilesional cyst (not shown). Associated surrounding oedema and surrounding local mass effect with partial effacement of the trigone of the right lateral ventricle.
DWI and brain perfusion imaging are difficult to interpret in the presence of calcification. Spectroscopy is noncontributory (not shown).
Areas of encephalomalacia in the right frontal lobe and cerebellar hemispheres bilaterally, compatible with chronic infarcts. No other suspicious findings elsewhere in the brain.
Conclusion: Heavily calcified right occipitoparietal intraaxial mass with an adjacent cyst, and surrounding oedema. The likely differential diagnosis is of a calcified tumour or more likely a CAPNON.