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July 1953


AMA Arch Surg. 1953;67(1):110-121. doi:10.1001/archsurg.1953.01260040113016

SINCE 1934, when Pickhardt1 first reported the successful removal of a pleuropericardial cyst from the mediastinum, numerous reports have appeared in the literature on the subject of thin-walled cysts formed in close relationship to the pericardium, often in the costophrenic angle or high in the mediastinum. Characteristically, these cysts are filled with clear watery fluid and are lined by mesothelium or endothelial-like cells. Two recent contributions to this subject by Drash and Hyer,2 and Lillie, McDonald, and Clagett,3 of the Mayo Clinic, include opinions not only as to the origin of these cysts in relation to the embryological development of the pericardium, but also reviews of previously reported cases as well as the clinical features and pathology of their own series. Because of the rarity of these mediastinal cysts, although it is possible that many of the cases have not been reported, it seemed justifiable to record

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