[Paretic syndrome of spinal stenosis].

We report a case of painless progressive leg amyotrophy without intermittent claudication due to spinal lumbar stenosis. Our attention was drawn to the lumbar region because of the discrepancy between normal leg sensory potentials and altered somatosensory evoked potentials, prompting us to perform a myelography. The rapid though partial, clinical improvement following decompressive surgery suggested that some of the symptoms may have been due to a reversible nerve conduction block.

Cylindrical spinal meningioma. A case report.

A case of cylindrical spinal meningioma is reported. This most unusual morphology suggested a preoperative diagnosis of either lymphoma, metastatic epidural tumor, or meningioma. At operation, the tumor was found to be hard and extremely adherent to the cord, so its anterior part had to be left in place.

High resolution SPECT with [99mTc]-d,l-HMPAO in normal pressure hydrocephalus before and after shunt operation.

Cranial CT and high resolution measurements of regional cerebral blood flow (rCBF) with brain dedicated single photon emission computer tomography (SPECT) and [99mTc]-d,l-hexamethylpropyleneamine oxime ([99mTc]-d,l-HMPAO) were performed before and after shunt operation in 14 consecutive patients with dementia and normal pressure hydrocephalus (NPH). When compared with a control group of 14 age matched healthy volunteers, the group of NPH patients was characterised by an enlarged subcortical low-flow region, significantly reduced rCBF and enhanced side-to-side asymmetry of rCBF in the central white matter, and enhanced side-to-side asymmetry in the inferior and mid-temporal cortex. Global CBF was normal.