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Eur J Cardiothorac Surg 2004;25:899-901
© 2004 Elsevier Science NL

Case report

Obstructed right pulmonary venous drainage and ipsilateral lung hypoplasia

Department of Cardiac Pathology, L'Institut Mutualiste Montsouris, 42, Boulevard Jourdan, 75014 Paris, France

Received 29 September 2003; received in revised form 4 February 2004; accepted 9 February 2004.

^* Corresponding author. Tel.: +33-1-566-16507; fax: +33-1-566-16523
e-mail: emmanuel.villa{at}voila.fr

A case of right lung hypoplasia and dyspnea, presented at our institution for cardiac evaluation, is described. Clinical evaluation and instrumental findings of normally connected but completely obstructed right pulmonary venous drainage have led us to diagnose an exceptional variant of subtotal cor triatriatum. Differential diagnosis was mainly carried out between pulmonary venous anomalies and drainage obstructions. Symptom relief was obtained with surgical excision of the atrial dividing membrane.

Key Words: Cor triatriatum • Pulmonary vein abnormalities • Lung hypoplasia • Cardiac surgery