Fig. 2
From: The role of contrast-enhanced ultrasound (CEUS) in the evaluation of scrotal trauma: a review
CEUS appearances of intratesticular haematoma after blunt trauma. B-mode image (a) showing an intratesticular rounded hypoechoic lesion (arrowheads), associated with hydrocele. On colour Doppler US (b), the lesion (arrowheads) showed no internal blood flow signals. CEUS (c) confirmed the absence of internal vascularity (asterisk), then unlikely a tumour and in keeping with that of haematoma. Note the peri-lesional hyperaemia (arrowheads) and the presence of two internal echoes, representing artefact from echogenic content