Abstract
Spontaneous pneumomediastinum (SPM) is a rare condition characterized by free air in the mediastinum that primarily affects young individuals between the ages of 10 and 30 years. The most frequent symptoms of SPM are chest pain and dyspnea. However, a decrease in voice volume without a change of tone is a rare presentation. SPM is generally a benign and self-limiting condition, but it can occasionally cause tension pneumothorax. If a young patient presents with a sudden decrease in voice volume without a change of tone, SPM should be considered as a possible diagnosis.