75-BV-1 Blastocyst 4aa before vitrification, nice cohesive trophectoderm, inner cell mass compact, slightly visible in the background at 5 o’clock 75-BV-2 Blastocyst 4bc before vitrification, zona pellucida not fully thinned…
74-BV-1a Slightly contracting blastocyst, nice trophectoderm 74-BV-1b Large, compact inner cell mass 74-AW-1a After warming same appearance as before vitrification
73-BV-1 Before vitrification blastocyst hatching at 11 o’clock with flat inner cell mass 73-AW-1a Blastocyst fully re-expanded during the exposure to the sucrose solutions
72-BV-1 Fully expanded blastocyst with nice cohesive trophectoderm and a compact inner cell mass in the background, on the left a large vacuole formed by TE cells 72-BV-2 Expanded blastocyst…
71-BV-1 Blastocyst 4ba with flat, poorly defined inner cell mass before vitrification 71-BV-2 Blastocyst 4ca with nice cohesive trophectoderm and thinned zona pellucida 71-AW-1 Fully expanded blastocyst after warming
70-BV-1 Hatching blastocyst with hatching site close to the ICM 70-AW-1 Warmed blastocyst showing strangulation of already hatched cells (7 o’clock position)
69-BV-1 Slightly ovoid full blastocyst 69-AW-1 Full blastocyst with starting re-expansion
67-BV-1 Hatching blastocyst with hatching site out of focus (4 o’clock position)
66-BV-1 Early blastocyst 66-AW-1 Early blastocyst with artificial hatching at 1 o’clock position
