epidural space = potential space filled with spinal nerves, blood vessels, fat and connective tissue

abscess
haematoma

#analgesia #regional-anaesthesia

https://www.bjaed.org/article/S2058-5349(22)00011-7/fulltext - see Fig 4 for where the Tuohy needle goes
https://litfl.com/thoracic-epidural-analgesia-for-chest-trauma/
https://litfl.com/spinal-epidural-abscess/