Table 4: Orphan diseases among a cohort of 175 Patients with an Intracranial Aneurysm: Unruptured intracranial aneurysm (UIA); SAH: Sub arachnoidal haemorrhage; FPP: French population prevalence; F: Female; M: Male.

Diagnosis FPP Sex Group
9 Lupus erythematosus disease 1/2000 F UIA
37 Ehler danlos syndrome 1/10000 F UIA
41 Klinefelter syndrome 1/1500 M UIA
68 Distilben induced uterine hypoplasia 4/100000 F SAH
94 Recklinghausen's disease 1/10000 F SAH
113 Narcolepsy 1/M F SAH
131 Charcot marie tooth disease 1/10000 M SAH
132 Moya Moya disease 1/32000 M SAH
141 Alzheimer's disease < 50 yrs 1/200000 M SAH
152 Mesencephalic angioma 1/1000 M SAH
153 Hemophilia A 1/10000 M SAH
159 Rare congenital thrombophilia 1/50000 M SAH
169 Double orifice right ventricle plus pulmonary atresia 1/10000 M SAH