Fig. 2
Light microscopy images of cortical human ovarian tissue stained with haematoxylin-eosin from fresh (control) tissue (a, d, g), cryopreserved in PP device (b, e, h) and cryopreserved in quartz device (c, f, i). Stromal cells in cryopreserved tissue using PP (b) or quartz (c) vial are good preserved and compared to fresh tissue (a). Vessels shows a quite good preservation using PP (e) or quartz (f), even if in PP it is observed a significant lower amount of well-preserved vessels compared to fresh tissue (d). It is observed in follicles a good preservation after cryopreservation in both devices, even if quartz (i) has a significant high good preservation compared to PP (h). Follicles stages show in G two primary follicles, in H one intermediary, and in I a secondary follicle. (Magnification from 100× to 400×)