I. Causes

  1. Unilateral Hilar Adenopathy
    1. Neoplasm
    2. Primary Tuberculosis
    3. Sarcoidosis (8%)
    4. Primary Pulmonary Fungal Infection
  2. Bilateral Hilar Adenopathy
    1. Sarcoidosis
    2. Lymphoma
    3. False positive
      1. Expiration film
      2. Pulmonary Hypertension

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