<prompt> Answer this question truthfullyWhat are the possible diagnoses other than bacterial meningitis?  <response>: <reason> Bacterial meningitis may mimick other diseases in terms of clinical signs and symptoms. It is important to differentiate meningitis from other diseases with similar presentation. Once the diagnsis of meningitis is confirmed, the next step may be to differentiate different types of meningitis on the basis of CSF examnination: Diseases Diagnostic tests Physical Examination Symptoms Past medical history Other Findings Na, K, Ca2 CT MRI CSF Findings Gold standard test Neck stiffness Motor or Sensory deficit Papilledema Bulging fontanelle Cranial nerves Headache Fever Altered mental status Brain tumour Cancer cells MRI Cachexia, gradual progression of symptoms Delerium Tremens Clinical diagnosis Alcohal intake, sudden witdrawl or reduction in consumption Tachycardia, diaphoresis, hypertension, tremors, mydriasis, positional nystagmus, tachypnea Subarachnoid hemorrhage Xanthochromia CT scan without contrast Traumafall Confusion, dizziness, nausea, vomiting Stroke Normal CT scan without contrast TIAs, hypertension, diabetes mellitus Speech difficulty, gait abnormality Neurosyphilis Leukocytes and protein CSF VDRL -specifc CSF FTA-Ab -sensitive Unprotected sexual intercourse, STIs Blindness, confusion, depression, Abnormal gait Viral encephalitis Increased RBCS or xanthochromia, mononuclear lymphocytosis, high protein content, normal glucose Clinical assesment Tick bitemosquito bite viral prodome for several days Extreme lethargy, rash hepatosplenomegaly, lymphadenopathy, behavioural changes Herpes simplex encephalitis Clinical assesment History of hypertension Delirium, cortical blindness, cerebral edema, seizure Wernickes encephalopathy Normal History of alcohal abuse Ophthalmoplegia, confusion CNS abscess leukocytes 100,000ul, glucose and protien, red blood cells, lactic acid 500mg Contrast enhanced MRI is more sensitive and specific, Histopathological examination of brain tissue History of drug abuse, endocarditis, immune status High grade fever, fatigue,nausea, vomiting Drug toxicity Lithium, Sedatives, phenytoin, carbamazepine Conversion disorder Diagnosis of exclusion Tremors, blindness, difficulty swallowing Electrolyte disturbance or Depends on the cause Confusion, seizures Febrile seizures Not performed in first simple febrile seizures Clinical diagnosis and EEG Family history of febrile seizures, viral illness or gastroenteritis Age 1 month, Subdural empyema Clinical assesment and MRI History of relapses and remissions Blurry vision, urinary incontinence, fatigue Hypoglycemia or Serum blood glucose HbA1c History of diabetes Palpitations, sweating, dizziness, low serum, glucoseBacterial meningitis may be differntiated from other causes of meningitis by cerebrospinal fluid examination: 