'Adenomyomatous' hamartoma of the lung

A 53-year-old man presented with a lung mass. A segmentectomy of the left l ung was performed, and pathologic examination revealed an unusual hamartoma tous lesion in the lung, named 'adenomyomatous hamartoma.' The tumor was co mposed of multicysts lined by ciliated pseudostratified bronchial epitheliu m and smooth muscle overgrowth. The authors have proposed that this is a di stinct entity that has not previously been described in the English literat ure.