periependymal

per·i·e·pen·dy·mal

(per'ē-e-pen'di-măl),
Surrounding the ependyma.

periependymal

(pĕr″ē-ĕp-ĕn′dĭ-măl) [″ + ependyma, an upper garment]
Around the ependyma.
References in periodicals archive ?
6] Typical patterns of brain involvement in NMOSD, although not pathognomonic, include lesions of the dorsal medulla/area postrema, periependymal regions in the brainstem, diencephalic structures, or cerebral hemispheres or long lesions spanning much of the corpus callosum or corticospinal tracts, corresponding to regions of high AQP4 expression.