Benign mediastinal lymphadenopathy presenting as cor triatriatum

Congenital Heart Disease, 04/27/2012

The patient underwent repair of cor triatriatum and lymph node biopsy shortly after the diagnosis was made. The biopsies revealed reactive lymph nodes with lymphatic dilation and no inflammatory or neoplastic features. This case represents the first pediatric example of extensive mediastinal lymphadenopathy mimicking the appearance of a malignant process as a result of severe pulmonary venous hypertension.

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