Unusual Forms of Adrenal and Extra-Adrenal Myelolipomas.

Myelolipomas are rare benign tumors of poorly understood tumorigenesis composed of mature hematopoietic tissue and fat. They mostly occur in the adrenal glands, but extra-adrenal myelolipomas have been reported in other locations such as the presacral region or retroperitoneum. It is not unusual that they are incidental findings revealed in the study of different diseases. We report 3 unusual examples of myelolipomas. The first is a multiple, unusually large, extra-adrenal myelolipoma, presented as an autopsy finding in an individual who had died suddenly from a central nervous system hemorrhage. The remaining 2 were incidental findings in patients studied for different reasons. Both were located within another neoplasm, namely an adrenal adenoma and a liver focal nodular hyperplasia. Moreover, the first showed infiltration by a non-Hodgkin lymphoma. [ABSTRACT FROM AUTHOR]

Copyright of International Journal of Surgical Pathology is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)