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Abstract
A case of mediastinal emphysema occurring without etiologic factor except a Valsalva's manoeuvre a few hours before admission in a 15-year-old boy is reported. Symptoms were cervical and chest pain,with moderate dysphagia. Diagnosis was confirmed by palpating subcutaneous air in the neck region and mediastinal air on a chest roentgenogram. A CT scan was performed to exclude a concurrent pneumothorax. The patient recovered with bed rest. Conclusion. - Spontaneous pneumomediastinum results from nontraumatic, mediastinal air leakage, without underlying lung disease. It should be considered in the differential diagnosis of chest pain, especially in healthy adolescents and young adults; it is certainly underdiagnosed in this population. (C) 1999 Editions scientifiques et medicales Elsevier SAS.
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Citations

Bodart, E., de Bilderling, G., Nisolle, J.-F., Trigaux, J.-P., & Tuerlinckx, D. (1999). Pneumomédiastin spontané chez un adolescent: une cause sous-estimée de douleurs thoraciques. Archives de pédiatrie, 6(12), 1293-1296. https://doi.org/10.1016/S0929-693X(00)88891-0 (Original work published 1999)