Abstract
RATIONALE: Arthroscopic shoulder surgery (ASS) is a low mortality and morbidity procedure, but anesthetic complications are reported. There have been no reports of combined chest wall swelling and pneumothorax after ASS. PATIENT CONCERNS: The patient's right lung was severely collapsed and the mediastinum was deviated after ASS. DIAGNOSIS: Pneumothorax on right chest. INTERVENTIONS: A chest tube was inserted and oxygen therapy was performed. OUTCOMES: The patient was discharged uneventfully. LESSONS: Elective ASS has low mortality and morbidity rates, but we should be more concerned over the complications after ASS.