Dağıstan, EmineCanan, ArzuHalıcıoğlu, SıddıkaCoşgun, ZelihaGürel, Safiye2021-06-232021-06-2320170970-938X0976-1683https://hdl.handle.net/20.500.12491/9372https://www.webofscience.com/wos/woscc/full-record/WOS:000412521200005https://www.alliedacademies.org/articles/changes-in-the-size-of-breast-lesions-during-menstrual-cycle-observed-by-ultrasound-an-initial-study-8070.htmlPurpose: We aimed to evaluate changes in size of breast lesions during menstrual phases. Material and methods: In this prospective study, 46 women aged 18-35 years old who were referred to our radiology clinic for breast sonography and had cystic or solid breast lesions larger than 5 mm were enrolled to the study. Breast ultrasound (US) was performed at two different times; one within 5 days before and one within 5 days after menstrual bleeding. Anteroposterior and transverse length of the lesions were measured. Results: In total, 145 breast lesions were detected by US. Of these lesions, 6 were visualized in premenstrual phase but were not observed in postmenstrual phase. 6 lesions different were not visualized in premenstrual, but were detected in postmenstrual phase. One hundred and twenty-three lesions were visualized by US both in luteal and follicular phases. Conclusions: Timing of breast US might cause false results and unnecessary further investigations. Therefore, we suggest that breast US in women should be performed in follicular phase of the menstrual cycle.eninfo:eu-repo/semantics/closedAccessBreast LesionUltrasonographyMenstrual CycleArticle281565516555N/AWOS:000412521200005N/A