Emerging roles for transthoracic ultrasonography in pulmonary diseases

Figure 18 Bronchial carcinoma infiltrating the pleural wall. A: Posterior intercostal scan shows a hypoechoic lesion accompanied by rib destruction (arrows); B: Twenty-four seconds after iv bolus of contrast agent, the lesion appears inhomogeneously enhanced; the disrupted rib appears more echogenic than the tumor (arrowheads), as a consequence of the incomplete tissue suppression due to the strong echogenicity of bone tissue.