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. 2015 Feb 7;8(4):399–408. doi: 10.22074/ijfs.2015.4180

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Fig 1 — Ultrasound images of endometrium. Echogenisity was decided by the comparison of myomertial echo. Homogeneously hypoechoic endometrium (A) is defined as a marginal hyperechoic line with a prominent hypoechoic inner layer, in which endometrial wave-like movements are observed. Inhomogeneous endometrium (B) shows an endometrium with a hyperechoic margin and a mottled inner layer, and homogeneously hyperechoic endometrium (C) exhibits an inner layer as hyperechoic as a marginal line. Internal os (arrowheads) can be identified.