retoperithelium

re·to·per·i·the·li·um

(rē'tō-per'i-thē'lē-um),
The reticular cells related to the reticular fiber network, as in the stroma of lymphatic tissue.
[L. rete, net, + G. peri, around, + Mod. L. thelium, fr. G. thēlē, nipple]

retoperithelium

(rē″tō-pĕr″ĭ-thē′lē-ŭm) [L. rete, net, + Gr. peri, around, + thele, nipple]
Epithelium covering a reticulum.