====== PULMORADIOLOGY ======

  * reverse halo - cryptogenic organising pneumo
  * bronchiectass - signet ring
  * pneuatoceles - strep pneumonia
  * bulging fissure sign - kleb pneumonia
  * golden s sign - right upper lobe collapse
  * egg shell calcification - silicosis,sarcoidosi
  * split pleura - empyema
  * air crescent sign - fungal ball in cavity
  * rising sun - sign - ruptured hydatid cyst
  * popcorn calcification - hamartoma  pulmonary
  * westernark/hampton hump - pulm embolism