Adnexa (pl., sing. adnexus) is a general term that refers to the accessory structures of an organ. In general radiological use, the term is often (incorrectly) used synonymously with ovary, an adnexal structure of the uterus.
Adnexa have been described with:
- uterus (adnexa uteri)
- eye (adnexa oculi)
- eyelids, lacrimal glands
- hair follicles, sweat glands, nails
History and etymology
"Adnexus" derives from the Latin adnectere ("to tie together").