Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Faint ground - glass opacities are seen adjacent to right heart border , but there is no correspondence on the lateral view . Mediastinal and cardiac contours are normal . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Faint ground - glass opacities are seen only on the PA view adjacent to the right heart border . In the context of newly diagnosed HIV , an infection ( PCP ) can not be excluded . The patient is known with pigeon at home , so hypersensitivity pneumonitis can also be considered . This has been discussed with Dr . ___ ___ two options are available : we can repeat the chest x-ray with oblique views to see if the opacities are real . Otherwise , we can go directly to CT scan .