Some cerebellar hypoplasia resulting from congenital brain abnormalities/malformations are not progressive. Causes include brain trauma, aneurysms, arteriovenous malformations, and brain tumors. Various rare congenital/genetic eye malformations are associated with glaucoma. Prospective studies have not shown any statistically significant congenital malformations. This disorder consists of a spectrum of defects, malformations and associated abnormalities. This group of diseases comprises a wide spectrum of congenital malformations affecting many newborns. The most common salivary gland neoplasms in children are hemangiomas, lymphatic malformations, and pleomorphic adenomas. Infection during pregnancy causes microcephaly and other brain malformations in some babies. Familial cerebral cavernous malformations are known to occur. This can result in microcephaly, severe brain malformations, and other birth defects. She was "responsible for investigating the epidemic of serious congenital limb malformations". Campomelic dysplasia is a developmental disorder that results in skeletal malformations. Benzodiazepines have been found to cause teratogenic malformations. Cocaine is also teratogenic, meaning that it can cause birth defects and fetal malformations. This can result in other severe brain malformations and birth defects.