| Summary: | Horseshoe lung is a rare, congenital, pulmonary anomaly in which the caudal and basal segments of the left and right lungs are joined together. Most cases of horseshoe lung are associated with scimitar syndrome. Horseshoe lung can be diagnosed using pulmonary angiography, showing that the isthmus of the pulmonary parenchyma crosses the midline into the contralateral side. The isthmus parenchyma is typically supplied by the hypoplastic pulmonary artery. Clinical symptoms, therapeutic methods, and prognosis depend on the incidence of pulmonary hypertension, heart failure, recurrent pneumonia, and other combinations of congenital malformations. In this article, we describe two cases of horseshoe lung associated with scimitar syndrome and pulmonary malformation.
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