Diagnostic Criteria for Idiopathic Intracranial Hypertension (IIH)

The combination of raised intracranial pressure, without hydrocephalus or mass lesion, normal cerebrospinal fluid (CSF) composition and where no underlying aetiology is found are accepted criteria for the diagnosis of IIH. Continue reading

Diagnostic Criteria for Idiopathic Pulmonary Fibrosis (IPF)

In 2000, IPF was defined as a specific form of chronic, progressive, fibrosing interstitial pneumonia of unknown cause, occurring primarily in older adults and limited to the lungs. Usual interstitial pneumonia (UIP) is the histopathological pattern of IPF. IPF is characterized by progressive worsening of dyspnea and lung function and is associated with a poor prognosis. Continue reading

ILAR Classification Criteria for Juvenile Idiopathic Arthritis (JIA)

Juvenile idiopathic arthritis is a heterogeneous group of diseases characterised by arthritis of unknown origin with onset before age of 16 years.

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Clinical Criteria for Bell’s Palsy (Idiopathic Facial Nerve Paralysis)

Bell’s palsy is a peripheral palsy of the facial nerve that results in muscle weakness on one side of the face.

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Diagnostic Criteria for Idiopathic Hypereosinophilic Syndrome (HES)

Diagnostic Criteria for Idiopathic Hypereosinophilic Syndrome (HES) are:

1. Persistent eosinophilia of over 1500/cubic millimeter for longer than 6 month;

2. Lack of evidence of other known causes of secondary hypereosinophilia (SH);

3. Multiple organ involvement.

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ATS/ERS Criteria for Diagnosis of Idiopathic Pulmonary Fibrosis (IPF) in Absence of Surgical Lung Biopsy

Major Criteria

  1. Exclusion of other known causes of ILD such as certain drug toxicities, environmental exposures, and connective tissue diseases

  2. Abnormal pulmonary function studies that include evidence of restriction (reduced VC, often with an increased FEV1/FVC ratio) and impaired gas exchange [increased P(A–a)O2, decreased PaO2 with rest or exercise or decreased DLCO]

  3. Bibasilar reticular abnormalities with minimal ground glass opacities on HRCT scans

  4. Transbronchial lung biopsy or BAL showing no features to support an alternative diagnosis

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