No previous MRIs available for comparison. Review is made with the preceding CT scans.
Previous bifrontal craniectomy and previous bilateral drain tubes placement is noted.
Extensive regions of encephalomalacia are present at the sites of the previous shearing injuries in both frontal lobes.
This involves the anterior and inferior aspect of the right frontal lobe with less severe encephalomalacia involving the anterior aspect of the left frontal lobe as well as around the line of the previously placed left drain tube.
Less severe changes affect the right temporal lobe.
A small focus of signal change is noted within the left thalamus.
Further regions of encephalomalacia and haemosiderin staining are noted within the left cerebellar hemisphere with extension into the vermis.
Volume loss companies the regions of encephalomalacia and is reflected in volume loss within the anterior aspect of the corpus callosum.
No abnormality of the parietal lobes is identified.
The hippocampi remain of good volume
Conclusion:
Previous severe head trauma.
Extensive bifrontal regions of encephalomalacia with further involvement of the temporal lobes and left cerebellar hemisphere.
No abnormality of the parietal lobe is identified