A forty- seven-year-old man presented with chronic headache with lower cranial nerve palsies of ten year duration with recent aggravation of symptoms. MRI revealed hypointensity — predominantly of the posterior falx cerebri and the tentorium cerebelli — on all sequences with intense peripheral contrast enhancement on CE SE T1, which on coronal images mimicked the illuminated Eiffel tower by night.
LeeY CChuengY CHsuS W: Idiopathic hypertrophic cranial pachymeningitis: Case report with 7 years of imaging follow-up. AJNR Am J Neuroradiol4: 119–23, 2003.