The Diagnostic Accuracy of Ultrasound in Assessment of Myometrial Invasion in Endometrial Cancer: Subjective Assessment versus Objective Techniques

Figure 2

Ultrasound images and schematic diagrams showing tumor anteroposterior (AP) diameter, maximum width of the tumor in sagittal plane, and uterine anteroposterior diameter, AP diameter of the uterus measured at the same place; (a-b) tumor/uterine AP ratio ≥ 0.5 reflecting the deep invasion, histologically proven FIGO stage IB; (c-d) tumor/uterine AP ratio < 0.5 indicating superficial invasion, histologically proven FIGO stage IA.