Figure 1.

Longitudinal ultrasound (US) imaging of the thoracoabdominal wall in a 4-month-old infant with a right-sided mesenchymal hamartoma of the chest wall. (A) Longitudinal ultrasound (US) of the lateral right thoracoabdominal wall (see body marker). Superior (SUP) and inferior (INF). A large solid heterogeneous mass with internal vascularity is seen near the liver (L). (B) The mass in the chest wall is surrounded by hypoechoic pleural fluid (*) and indents the superior aspect of the right hemidiaphragm, seen as a thin echogenic structure (arrows), indicating an intrathoracic origin. The proximity to the upper pole of the right kidney (RK) is also shown. (C) Longitudinal US shows several echogenic foci, likely to be calcifications (arrow) and small hypoechoic cystic spaces (dotted arrow) within the mass. The liver (L) is shown.