卵子直徑

oocyte diameter: 100-120um
oocylte+cumulus diameter: 140-170um
immature oocyte < mature oocyte 5-10um

http://humrep.oxfordjournals.org/content/23/1/37.full

Figure 6:

Frequency histograms of mean oocyte + zona diameter after culture for oocytes that either matured in vitro, remained immature or became atretic in culture (a) Oocytes from unstimulated PCO patients and (b) oocytes from stimulated ICSI patients