Asim Choudhri
Diffusion-weighted imaging rose to prominence due to its ability to rapidly detect early signs of cellular metabolic shutdown (cytotoxic edema), and it quickly became the gold standard for the detection of acute cerebral infarction. While DWI is typically evaluated in a qualitative manner, quantified calibrated information can be obtained in the form of apparent diffusion … more »
Sato Eida
Preoperative prediction of tumor malignancy is clinically very important, because this information strongly influences the surgical plan. Diffusion-weighted imaging is very sensitive to biophysical abnormalities associated with pathologic changes; in this regard, apparent diffusion coefficient measurement has been used to diagnose benign and malignant salivary gland tumors. However, salivary gland tumors are composed of distinctive … more »
Kristen W. Yeom
A few years ago we encountered a series of very rare and aggressive chordomas of the skull base and sacrum in four young children, referred to as poorly differentiated chordomas. While it is commonly known that chordomas are T2-bright, these were very dark. So dark, in fact, that we had initially considered … more »
Zoran Rumboldt
I was a brand new neuroradiology attending in my first week at an academic institution, eager to teach the trainees and be useful and helpful to the clinical colleagues, when an MRI of a child with a 4th ventricle mass appeared on the board. It was a large cyst with a small enhancing nodule, … more »
Cheng Hong Toh
One of the earliest and most commonly studied applications of diffusion tensor imaging to brain tumor imaging has been the attempt to use apparent diffusion coefficient and fractional anisotropy (FA) measurements to estimate glioma grade. But results have been mixed, and it is difficult to draw any firm conclusions. In contrast, ADC … more »
Netsiri Dumrongpisutikul
Pineal region tumors constitute 1% of all intracranial tumors.1 Among the various histologic types of pineal tumors, the germ cell tumors are more frequent than the pineal cell origin tumors.2 Our research aimed to differentiate between germinomas and pineal cell tumors based on ADC values and MR imaging characteristics. The previous literature suggests … more »
Stephen F. Kralik
The first year of life is truly an amazing period of time in the life of a child. The brain is developing in order to allow for major changes in mobility, communication, and social interaction. Brain tumors in the first year of life are, thankfully, uncommon; however, these tumors present challenges … more »