VARIABILITY OF LYMPHOID STRUCTURES OF THE VAGINAL VESTIBULE IN DIFFERENT PHASES OF THE OVARIAN-MENSTRUAL CYCLE

Abstract

The aim of the study was to analyze the morphological features of the lymphoid tissue of the vestibule of vagina in women of reproductive age in different phases of the ovarian-menstrual cycle.Microanatomical methods have been used to study small glands of vaginal vestibule in women of reproductive age. The glands were examined depending on the phase of the ovarian-menstrual cycle. The phases of secretion and proliferation were differentiated by histological examination of the ovaries. At the level of the middle third of the vaginal vestibule transverse sections with further staining with hematoxylin-eosin, picrofuxin by van Gieson were performed.The results showed that all the morphogenetic forms of lymphoid tissue are present in the walls of the vaginal vestibule. Structural parameters of the lymphoid tissue of the vaginal vestibule significantly change during the ovarian-menstrual cycle. Thus, in the phase of secretion, the proportion of lymphoid nodules containing the center of reproduction is larger, compared with the phase ofproliferation and desquamation. The area and length of the lymphoid nodule with the center of reproduction in the vaginal vestibulewalls in the secretory phase is greater than in the proliferation and desquamation phases. The area ofthe reproductive center at the lymphoid nodule, in the phase of secretion is somewhat larger than in the proliferative and desquamation phases.