Fig. 2
a Chest X-ray, at pre-conception, demonstrated that the right lung looked over-infiltrated and was bulging into the left thorax. b At 30 weeks of gestation, the position of the diaphragm was located at the same level as before conception, while vascular shadows in the right lung field were increased. (Asterisk marks the 12th thoracic vertebra in each chest X-ray.) c On the day before cesarean section, chest X-ray in supine position confirmed no significant displacement of the diaphragm, when considering the impact of the posture on diaphragm position; however, it revealed further increase of vascular shadows in the right lung field. d No abnormal findings in the lung field and no significant change of the diaphragm level, compared with those the day before the operation, were confirmed, immediately after the cesarean section