Fig. 1

At the level of the distal myotendinous junction of the first muscle portion of the left rectus abdominis, a discontinuity can be seen in an irregularly hypo-anechoic area with fragments of isoechoic tissue inside it. The area measures approximately 19 × 23.5 × 11.5 mm (longitudinal × transverse × anteroposterior diameters, respectively), shows patterns of moderate hypervascularization on power Doppler, and demonstrates diastasis of the margins during the execution of functional tests of 1/2 crunch and especially with legs raised. The lesion affects the anteroposterior diameter for approximately 85% of the entire thickness. The finding depicts a II-degree lesion (3B according to the Munich consensus 2012) of the left rectus abdominis with residual intramuscular hematoma in a predominantly fluid phase