Chest radiograph
（重定向自Chest x ray）
![](/Images/godic/202501/04/Pneumonia_x-ray4812.jpg")
![Positioning for a PA chest x-ray](/Images/godic/202501/04/259S-007_Hospital_Corpsman_2nd_Class_Kleinne_Lapid_takes_a_chest_X-ray_of_a_patient_during_a_Continuing_Promise_2009_medical_community_service_project_at_Hospital_Espana_in_Chaminga,_Nicaragua4812.jpg")
![A chest radiograph with the angle parts of the ribs and some other landmarks labeled.](/Images/godic/202501/04/Chest_labeled4812.png")
![](/Images/godic/202501/04/Chest_Xray_PA_3-8-20104812.png")
In radiology, a chest radiograph, colloquially called a chest X-ray (CXR), or chest film, is a projection radiograph of the chest used to diagnose conditions affecting the chest, its contents, and nearby structures. Chest radiographs are the most common film taken in medicine.