The animal model showed that direct MR imaging of the thrombus improved 24 hours after USPIO administration with a T1-weighted sequence. No improvement was seen with the T2*-weighted sequence.
The thrombus model closely resembles the human venous stagnation thrombus of different organizational stages. With state-of-the-art MRI techniques, thrombi were only partially displayed with the visibility depending on thrombus age. The model may be suitable for evaluating new and potentially more effective MRI techniques for improved thrombus visualization.
We discuss the unusual aspects of multifocal primary GBMs in the posterior fossa. Although rare, they should be considered in the differential diagnosis of cerebellar tumors, which stresses the importance of a surgical treatment to establish a histological diagnosis because there are no reliable radiographic criteria for distinguishing multifocal infratentorial gliomas from multiple metastases and other tumor entities. The differentiation between a primary and secondary cerebellar GBM did not lead to any change of the treatment strategy in this case.
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