Archives de pédiatrie : organe officiel de la Sociéte française de pédiatrie
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Mediastinal mature teratomas are rare in children. Diagnosis is often made in the presence of a complication. We report a case of a mature mediastinal teratoma, complicated by its opening in the lung. ⋯ The CT scans and MRI aided in establishing the diagnosis. Biological tests (alpha-foetoproteins and beta-HCG) confirmed the benignity of the tumor. The child was operated on with full success.