The initial signs and symptoms of<unk>  are usually very general. This makes<unk>  hard to diagnose until the patients experience a severe<unk> logical damage. In addition, the combination of symptoms varies among patients. Parenchymal<unk>  The main symptom is meningoencephalitis which happens in ~75% of<unk>  patients. Other general symptoms of<unk> 's disease are also present among parenchymal<unk>  patients such as fever, headache, genital ulcers, genital scars, and skin lesions. When the brainstem is affected, ophthalmoparesis, cranial<unk> pathy, and cerebellar or pyramidal dysfunction may be observed. Cerebral hemispheric involvement may result in encephalopathy, hemiparesis, hemisensory loss, seizures, dysphasia, and mental changes including cognitive dysfunction and psychosis. As for the spinal cord involvement, pyramidal signs in the limbs, sensory level dysfunction, and, commonly, sphincter dysfunction may be observed. Some of the symptoms are less common such as stroke (1.5%), epilepsy (2.2–5%), brain tumor, movement disorder, acute meningeal syndrome, and optic<unk> pathy. Non-parenchymal<unk>  Because Non-parenchymal<unk>  targets vascular structures, the symptoms arise in the same area. The main clinical characteristic is the cerebral venous thrombosis (CVT). If one experiences CVT, a clot in one of the blood vessels in the brain blocks the blood flow and may result in stroke. This happens in the dural venous sinuses. Stroke-like symptoms such as confusion, weakness, and dizziness may be monitored. Headache tends to worsen over the period of several days. Some of the less common symptoms include intracranial hypertension and intracranial aneurysms.
Neuro-Behçet's disease
Sever's disease
Chilaiditi syndrome
Bowel-associated dermatosis–arthritis syndrome
TRIANGLE disease
Swyer–James syndrome
Swaim's Panacea
Franceschetti–Klein syndrome