Hello, Your Cesarean section was probably done under spinal anesthesia and any blood clot formed should have been around the sectioned area. If you are talking about a thrombus (blood clot) formation inside the blood vessel which has moved to the lungs (embolism), then the chances are very rare. Usually thrombus occurs in surgeries in long post operative immobilization or prolonged bed rest. Even if it has occurred it usually dissolves over days. If the thrombus were to have been big, it would have caused obstruction symptoms resulting in difficulty in breathing. Your complaint of blood clot to the cardiologist must have made them to suggest and echo and MRI. However, if you want to get it done, it is done by a radiologist in most of developed scan centers. You can make an appointment and meet. I would usually suggest to wait and watch as the possibility of blood clot in lungs is low, if you do not have any breathlessness. Hope I have answered your query. If you want to ask any further questions, will be happy to help again.