Fig. 5From: The ultrasound-guided proximal intercostal block: anatomical study and clinical correlation to analgesia for breast surgerySaved ultrasound images of PICB in one of the patients from the clinical study. a Upper image shows the needle tip near the caudal border of the 4th rib, and just underneath the internal intercostal membrane. b Image below shows the anterior displacement of endothoracic fascia and parietal pleura at the level of injection (white arrow) and the next level cranially (red arrow)Back to article page