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Hamartoma of Pericardium — Lymphatic Type

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Abstract

PRIMARY neoplasms of the pericardium are rare. Yater1 in a comprehensive review of tumors of the heart and pericardium in 1931 mentioned lipoma, sarcoma and mesothelial tumors as the types encountered. He also presented a cyst “probably of a lymphatic vessel” in the pericardial fat at the apex of the heart. Histologic evidence, however, was lacking in his report. Keller and Callender2 have described a large neurofibroma attached to the pericardium apparently originating from the phrenic nerve. A teratoma lying within the pericardial cavity and adherent to the pulmonary artery was noted by Joel3 in 1890. More recently Greenberg and Angrist4 have reported 2 cases demonstrating hemangiomatous tumors of the pericardium. One of these was of the benign cavernous type; the other a progressive, invasive angio-endothelioma.

Although lymphangiomatous cysts of the mediastinum are considered rare, reports of their occurrence have appeared occasionally in the literature. Stout,5 in commenting upon N. C. Foot’s discussion of mediastinal tumors, emphasizes the occurrences of such lesions. Although many of the cases of mediastinal lymphangiomatous cysts reported have demonstrated attachment to the pericardium as well as to other thoracic structures, their exact origin has not been established and histologic descriptions have been lacking in some instances. In the foreign literature in 1929, Eliaschewitsch6 reported an example of cystic lymphangioma arising on the posterior surface of the pericardium. Lenkeit,7 a year previously, observed a cyst on the anterior surface of the heart but its true nature was not discussed.

Analogous cases of cystic lymphangioma arising anatomically. . .


 

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