%0 Journal Article %T Horner Syndrome and Thoracic Disc Herniation %A Josef G. Heckmann %A Steffen Pauli %J Archive of "The Neurohospitalist". %D 2016 %R 10.1177/1941874415588748 %X A 45-year-old woman presented with acute Horner syndrome associated with several weeks of midscapular pain radiating to the left upper extremity. The physical examination showed a left-sided Horner syndrome (Figure 1A) and signs of an ipsilateral radiculopathy of the first thoracic root with numbness and weakness in the T1 distribution. By computed tomography angiography, a dissection of the internal carotid artery was excluded. Spinal magnetic resonance imaging (MRI) demonstrated a pronounced disc herniation at the T1-2 level (Figure 1B and andC).C). A laminoforaminotomy via a posterior approach was performed resulting in complete recovery %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4680899/