Biomedical subjects
M J Kushner
Publications and source records attributed to M J Kushner.
Frontal lobe astrocytoma following radiotherapy for medulloblastoma.
A young woman had a frontal lobe astrocytoma 14 years after successful treatment of a posterior fossa medulloblastoma by surgery and whole-neuraxis irradiation. The association of these two tumors is rare, and it is unlikely that the second tumor was the result of metastasis and differentiation of residual or recurrent medulloblastoma. We review the evidence supporting this view and also the likelihood that the astrocytoma was induced by the prior radiation.
Evaluation of sellar and parasellar masses by computed tomography.
Computed tomography is the method of choice for initial evaluation of patients with potential suprasellar masses. In our experience, CT has proved completely reliable for detecting or ruling out the presence of a suprasellar mass, the direction and degree of parasellar extension, and the presence of any calcific or cystic component of the lesion. When multiple cut CT has been negative, further diagnostic studies have proved unrewarding. When CT has been positive, additional studies have been required in some cases to rule out aneurysm prior to craniotomy.