Isolated Mediastinal Lymphangioma: Prenatal Diagnosis and Thoracoscopic Treatment

Abstract

Isolated mediastinal lymphangiomas are uncommon. We report a case of a 14 × 8 mm right paracardiac cyst diagnosed at 20 weeks' gestation. The prenatal evol ution was uneventful and a magnetic resonance im aging at 31 weeks showed the limited extension of the cy st into the anterior mediastinum. At birth, the bab y was asymptomatic, but the size of the lesion increased steadily (48 × 29 mm). At 7 months of life, he underwent a thoracoscopic resection of the cy st wit hout i ntra or postoperative co mplications. Histologi cal exam ination showed a lymphangioma. This case i s remarkable for its prenatal diagnosis, the thoracoscopic treat ment and the 8 years of follow-up without recurrence.