arteriovenous hemangioma/malformation Foix-Alajouanine syndrome https://www.malacards.org/card/foix_alajouanine_syndrome ICD9:323.9 GARD:0004163 MONDO:0019196 UMLS:C0472347 Subacute ascending necrotizing myelitis familial osteosclerosis with abnormalities of the nervous system and meninges icd11.foundation:937824238 Subacute angiohypertrophic myelomalacia SCTID:230379007 MEDGEN:141629 Orphanet:79093 Subacute necrotizing myelitis angiodysgenetic necrotizing myelopathy Foix-Alajouanine syndrome, also called subacute ascending necrotising myelitis, results from chronic congestion of the extrinsic pial veins of the spinal cord and of the intrinsic subpial network. It is characterized by progressive ascending deficit over a period of several months or years.