A previously healthy 34-year-old woman, gravida 7, para 5 was presented on day 14 postpartum with severe low back pain, chest pain, dyspnea, and swelling of both legs after uneventful cesarean section. CT scan of abdomen, pelvis (Panel A) and chest (Panel B) was obtained. Can you identify this complication and suggest treatment?

*This case is from Docplexus editorial team for educative purpose only. Source: NEJM The correct answer is posted in the comments section below!