Congenital malformations, deformities, and chromosomal abnormalities (Q00-Q99).
- Li-Fraumeni syndrome – autosomal dominant inherited disorder leading to multiple tumors (including astrocytomas).
Blood, blood-forming organs – immune system (D50-D90).
- Sarcoidosis (synonyms: Boeck’s disease; Schaumann-Besnier’s disease) – systemic disease of connective tissue with granuloma formation.
Cardiovascular system (I00-I99)
- Chronic subdural hematoma (cSDH) – hematoma (bruise) between the dura mater and the arachnoid membrane (spider membrane; middle meninges between the dura mater (hard meninges; outermost meninges) and the pia mater); clinical presentation: uncharacteristic complaints such as a feeling of pressure in the head, cephalgia (headache), vertigo (dizziness), restriction or loss of orientation and ability to concentrate
- Vascular malformations in the brain
- Intracranial hemorrhage (bleeding within the skull; parenchymal, subarachnoid, sub- and epidural, and supra- and infratentorial hemorrhage)/intracerebral hemorrhage (ICB; cerebral hemorrhage).
- Intracerebral hematoma – accumulation of blood in the brain.
- Sinus vein thrombosis (SVT) – occlusion of a cerebral sinus (large venous blood vessels of the brain arising from duraduplications) by a thrombus (blood clot); clinical presentation: headache, congestive papules, and epileptic seizures
- Circumscribed cerebral atrophy (brain shrinkage).
- Cerebrovascular insufficiency – circulatory disorders of the brain.
Infectious and parasitic diseases (A00-B99).
- Encephalitis (inflammation of the brain), unspecified.
- Gummata – nodes occurring in syphilis.
- Brain abscess – encapsulated collection of pus in the brain.
- Parasitic cysts
- Tuberculoma – foci in tuberculosis (consumption).
Neoplasms – tumor diseases (C00-D48
- Angioma – benign vascular neoplasm.
- Cavernoma (synonyms: cavernous angioma, cavernous hemangioma): cerebral vascular malformation (in the brain).
Psyche – nervous system (F00-F99; G00-G99).
- Arachnoid cysts – cavities in the brain filled with cerebrospinal fluid-like fluid.
- Granulomas – nodule-like changes
- Colloid cysts – cavities filled with colloid in the brain.
