| Namespace | MPheno.ontology | Obsolete | false |
| description | atypical production of or inability to produce the supporting cells for the developing female gamete in the ovary of mammals; granulosa cells form a single layer around the mammalian oocyte in the primordial ovarian follicle and advance to form a multilayered cumulus oophorus surrounding the ovum in the Graafian follicle |