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Table 1 The prevalence of each recorded incidental finding in 753 MRI scans

From: Prevalence of incidentally discovered findings on brain MRI in adult Egyptian population

AbnormalityNo. (%)
Vascular malformations
 - Aneurysm6 (0.8 %)
 - Cavernoma9 (1.19 %)
 - Developmental venous anomaly3 (0.4 %)
 - Vertebro-basilar dolicoectasia3 (0.4 %)
Benign tumors
 - Meningioma19 (2.5 %)
 - Shwannoma2 (0.26 %)
 - Intracranial lipoma7 (0.92 %)
 - Pituitary macro-adenoma9 (1.2 %)
Malignant tumors
 - Metastasis1 (0.13 %)
 - DENT1 (0.13 %)
Intracranial cysts
 - Arachnoid cyst11 (1.46 %)
 - Epidermoid cyst3 (0.4 %)
 - Dermoid cyst1 (0.13 %)
 - Choroidal fissure cyst2 (0.26 %)
 - Choroid plexus cyst2 (0.26 %)
Other findings
 - Chiari I malformation6 (0.8 %)
 - Corpus callosum agenesis3 (0.4 %)
 - Dandy walker variant2 (0.26 %)
 - Subdural collection5 (0.66 %)