J J Wasenko

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PURPOSE To describe the MR appearance of cystic meningiomas, and to correlate the MR appearance with the surgical and neuropathologic findings. METHODS Eight patients with cysts associated with meningiomas were studied on a 1.5-T MR system. Unenhanced sagittal T1- and axial T2-weighted images were obtained in all patients. Axial and coronal gadopentetate(More)
Four patients with Sturge-Weber syndrome were evaluated with CT and MR. MR demonstrated the characteristic features of the disease: cerebral atrophy (four patients), ipsilateral bone and sinus hypertrophy (three), ocular findings (one), intracranial calcification (four), prominent deep venous system (three), and enlarged choroid plexus (two). CT(More)
Markedly dilated cervical epidural veins and right upper extremity weakness developed in a 43-year-old man 4 months after contralateral craniectomy for head trauma. After cranioplasty, his symptoms improved markedly and the size of the veins returned to normal. These findings suggest that enlarged cervical epidural veins may occur without an underlying(More)
Gossypol, a polyphenolic compound which depletes cellular energy by inhibition of several intracellular dehydrogenases, has been shown to have antiproliferative activity against human glial tumor cell lines in vitro and in nude mouse xenografts. Human trials of gossypol as a male contraceptive have demonstrated safety of long-term administration. We studied(More)
We report five cases of tumors occurring in three children and in two adults. The tumors had unusual histomorphology and a mixture of ependymal and piloid-like astrocytic features and a myxoid stroma similar to myxopapillary ependymomas. MR imaging in three of the cases showed aggressive, intensely enhancing partially cystic hypothalamic-suprasellar masses(More)
A homogeneously enhancing cervical cord lesion and multiple ring-enhancing brain lesions were detected with MR imaging in a 41-year-old woman with a staphylococcal septicemia. The brain and spinal cord lesions diminished in size after antibiotic therapy. Although no biopsy was performed, we believe, on the basis of the clinical outcome, that the spinal cord(More)
Rapid sequential computed tomography of the brain after the bolus injection of contrast material provides invaluable information as to the characteristic blood flow of intracranial lesions in a noninvasive manner. Plotted dynamic curves permit accurate diagnosis of particularly difficult cases of infarcts and neoplasms. Dynamic computed tomographic (CT)(More)
Mesial temporal sclerosis, otherwise known as hippocampal sclerosis, is the most common entity associated with medically intractable temporal lobe epilepsy. The neuronal loss and gliosis of the hippocampus that is pathologically characteristic of this disorder is thought to serve as an epileptogenic substrate. Accurate identification and localization of(More)
We present four patients in whom evidence of edema or a pseudomass in the retropharyngeal space was found on CT scans obtained after thrombosis of the internal jugular vein. The clinical condition of one patient led to surgery, which documented the sterility of the retropharyngeal space despite the CT appearance of an inflammatory process. The CT findings,(More)