Unique massive pulmonary hamartoma. Case report with review of hamartomata treated at Brompton Hospital in 27 years.

A 30-cm tumor was removed from a 32-year-old man. It consisted of a collection of multiple small tumors, each histologically typical of a chondromatous hamartoma. Sixteen years earlier, identical histologic findings were noted in "cysts" in the right lower lobe. A review of other cases of cartilaginous hamartoma treated at Brompton Hospital since 1950 and a study of the literature suggest that this tumor is unique.