Differential diagnosis of Horner’s Syndrome

​Differential diagnosis of Horner’s Syndrome are : 
-substernal goiter 
-Pancoast tumour / lung cancer 
-lung abscess / tuberculoma 
-neck trauma / neck tumour 
-cluster headache
-syringomyelia 
-demyelinating disease / multiple sclerosis 
-Brainstem infarct /lateral medullary syndrome 
-internal carotid dissection