Suprasellar germ cell tumor with subarachnoid seeding MRI and MR spectroscopy findings.

A case of suprasellar germinoma with subarachnoid seeding is presented. Patient had a history of depression unresponsive to drug therapy and recently developed diabetes insipidus. MR imaging revealed a huge suprasellar mass, heterogenous in signal intensity due to cystic components.

MR spectroscopy of cervical spinal cord in patients with multiple sclerosis.

MR spectroscopy (MRS) of the brain in patients with multiple sclerosis has been well studied. However, in vivo MRS of the spinal cord in patients with MR spectroscopy has not been reported to our knowledge. We performed MRS of normal-appearing cervical spinal cords in multiple sclerosis patients and in healthy controls.

[The effect of aging on the apparent diffusion coefficient of normal appearing white and gray matter].

Purpose: To test if the apparent diffusion coefficient (ADC) values reflect the ultrastructural changes of normal appearing white and gray matter with advancing age.

Materials And Methods: We selected 45 patients with normal MRI and DW imaging findings. DW and MRI imaging was performed and for each patient the average ADC on trace images of the frontal and occipital white matter and the thalamus were compared with increasing patient age.