<prompt> Subnuclear cytoplasmic vacuolization is seen in which stage of menstural cycle ?Proliferative phaseDuring mensturationSecretory phaseNone  <response>: Ans. is c i.e., Secretory phaseSubnuclear cytoplasmic vacuolization is seen in early secretory phase.Histological features in secretory phasei Basal location of gland cell nuclei Post-ovulation day 5-6 and later in cycle.ii Subnuclear cytoplasmic vacuolization early secretory phase.iii Serated glandular configration or Saw-tooth appearance mid-secretory phase.iv Periaeriolar predecidual rection mid-secretory phase. 