Two peas from the same pod: vanishing follicles and postmature oocytes

During ovarian stimulation, on occasion, a previously identified follicle can no longer be located. This phenomenon, known as a vanishing follicle, has an increasing prevalence with advancing age (1Kol S. The vanishing follicle in women aged over forty: premature, mechanical, LH-independent luteinization may reflect oocyte-follicle low quality?.Med Hypotheses. 2008; 70: 1227-1228Crossref PubMed Scopus (3) Google Scholar). A postmature egg, a...