complex cortical dysplasia with other brain malformations 7 (MONDO_0012399) is any complex cortical dysplasia with other brain malformations in which the cause of the disease is a mutation in the TUBB2B gene. Also known as: CDCBM7, TUBB2B complex cortical dysplasia with other brain malformations, complex cortical dysplasia with other brain malformations caused by mutation in TUBB2B, complex cortical dysplasia with other brain malformations type 7, polymicrogyria due to TUBB2B mutation.