In many publications, gangliogliomas are often referred to as “ubiquitous.” This term, meaning both “existing everywhere” or “constantly encountered,” is both correct and incorrect when referring to these tumors. Gangliogliomas may exist anywhere in the central nervous system, but are not commonly encountered. In this issue of the American Journal of Neuroradiology, two articles address the top...

Calcium channels SMA A paralyzing disease might best be treated by exciting motoneurons rather than saving them, report Jablonka et al. The paralysis that occurs in patients with spinal muscular atrophy (SMA) stems from defective SMN1, a protein that interacts with mRNA transport factors. Motoneurons seem to be particularly sensitive to the transport problems, perhaps due to their considerable ...