Educational Guide to Costophrenic Angle Blunting on Chest X-ray

This Radiology Masterclass post teaches systematic recognition of costophrenic angle blunting on chest radiographs—a key sign of pleural effusion or thickening.

• Educational blog post covering the radiographic anatomy, appearance, and common causes (pleural effusion, pleural thickening) of costophrenic angle blunting.
• Intended for medical students, residents, and clinicians learning chest X-ray interpretation.

RadPigeon summaries are original and for information only. They are not clinical advice.