Fig. 4
From: Radiology–pathology correlation of endometrial carcinoma assessment on magnetic resonance imaging
Radiological (a, oblique short-axis post-contrast T1W GRE fat suppressed image) and pathological (b, 0.4 × magnification) measurement of depth of myometrial invasion. (a) shows the radiological measurement of depth of invasion. The red line is an imaginary line estimating the endometrium/myometrium junction. Measurement (a arrow) shows the depth of the tumour into the myometrium beyond the junction. Measurement (b arrow) shows overall total thickness of the myometrium. The endometrium/myometrium junction can be irregular normally or due to distortion by the tumour. Measurement on histology is performed on low-power view with myoinvasion determined when tumour cell is seen interspersed with myocytes. The solid line delineates the normal endometrium from the myometrium. The dotted line is the estimated endometrium/myometrium junction at the site of the tumour and the basis for the measurement of myoinvasion