1. Pleural effusion in major fissure Chest PA upright Pneumonia in RUL, mass like lesion in right lower chest

2. Loculated Pleural Effusion Vertical lens shape Not change in lateral decubitus Chest PA upright Boy 11 years, Pneumonia in LLL

3. Parapneumonic effusion & Empyema Stage I : Noninfected exudative parapneumonic effusion –Simple pleural effusion –Echofree fluid from ultrasound –+ pleural enhancement from CT Stage II : Fibrinopurulent –Usually loculated pleural effusion –Echogenic fluid, debris, or septation from US –Pleural enhancement on CT Stage III : Organizing empyema –Thickened pleura

4. Bacterial multilobar pneumonia with simple pleural effusion & complex nonseptated pleural effusion

5. Complex septated pleural effusion

6. Echogenic pleural effusion Consolidated lung