Thrombotic pulmonary embolism of inferior vena cava during caesarean section: A case report and review of the literature

Figure 1 The dynamic process of inferior vena cava thrombus. The images obtained from transthoracic echocardiography during caesarean section (CS); the time is displayed in the upper left corner; the dotted line outlines the thrombus. A: Inferior vena cava (IVC) was normal before CS; B: A nascent IVC thrombus appeared after placental removal during CS; C-E: The thrombus grew rapidly and extended to the tricuspid valve orifice in a serpentine manner; F: The thrombus moved to the tricuspid valve orifice; G: The thrombus detached from the heart; H: A partial thrombus was seen in the right main pulmonary artery. IVC: Inferior vena cava; LA: Left atrium; RA: Right atrium; LV: Left ventricle; RV: Right ventricle; RPA: Right pulmonary artery; LPA: Left pulmonary artery; MPA: Main pulmonary artery.