Chest ultrasound findings in hepatopulmonary fusion (HPF).

Hepatopulmonary fusion (HPF) is an extremely rare condition characterized by a fusion between the herniated liver and lung right parenchyma. Knowledge about this condition comes from the few cases reported in the literature (less than 40 cases). While diagnostic evaluation as X-Ray, Computed Tomography (CT), Magnetic Resonance Imaging (MRI), and Single Photon Emission Computed Tomography (SPECT) were described, poor ultrasound findings are available. In this paper, the authors provide the detailed chest ultrasound findings of this rare condition.