Primary lymphoepithelioma-like carcinoma of the lung in a child. Report of an Epstein-Barr virus-related neoplasm.

Lymphoepithelioma-like carcinoma (LEC), an undifferentiated carcinoma with pronounced lymphocytic infiltration, often is seen in the nasopharynx as well as in other areas. But such primary pulmonary lung neoplasms in children are rare, and we present the first reported case of primary pulmonary LEC in a child.