TY - JOUR T1 - Transdural spinal cord herniation with extradural cerebrospinal fluid collection JF - Practical Neurology JO - Pract Neurol SP - 482 LP - 483 DO - 10.1136/practneurol-2015-001159 VL - 15 IS - 6 AU - Liam S Carroll AU - James T H Teo Y1 - 2015/12/01 UR - http://pn.bmj.com/content/15/6/482.abstract N2 - A 58-year-old female nurse with a background of asthma gave a 7-year history of slowly progressing ‘stiff knees’ and stumbles. A rheumatological diagnosis was suspected; however, bilateral lower-limb radiological investigations were normal. Her gait slowed to the extent that she had to take leave from work and required a walking stick. Subsequently, she developed gradual onset of altered sensation below the thorax with urinary incontinence and difficulty in passing stool. She therefore presented to the emergency department.On examination, she had reduced strength of right ankle dorsiflexion and plantarflexion … ER -