“…However, there is now growing evidence of its value as an adjunct tool to MRI and other conventional modalities for more accurate detection of CNS disease [ 32 , 33 ]. To our knowledge, this is the first case report highlighting the application of FDG-PET to identifying dural based LCH CNS involvement [34] and its potential to help differentiate similar appearing lesions depicted on conventional imaging [35] .This would be particularly useful in cases of isolated dural or intra-axial LCH that can be diagnostically challenging, especially when the clinical picture is not clear-cut [ 32 , 33 , 36 , 37 ].…”