Renal myelolipoma: a rare extra-adrenal tumor in a rare site: a case report and review of the literatureReportar como inadecuado

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Journal of Medical Case Reports

, 7:92

First Online: 04 April 2013Received: 02 January 2013Accepted: 05 March 2013DOI: 10.1186-1752-1947-7-92

Cite this article as: Ghaouti, M., Znati, K., Jahid, A. et al. J Med Case Reports 2013 7: 92. doi:10.1186-1752-1947-7-92


IntroductionMyelolipomas are uncommon, benign tumors composed of mature adipose tissue and hematopoietic elements. They mostly occur in the adrenal glands, but extra-adrenal myelolipomas have also been reported in other locations such as the presacral region, retroperitoneum, pelvis and mediastinum. Here, we present a case of an extra-adrenal myelolipoma in a rare site: the renal parenchyma. To the best of our knowledge, it is only the third case reported in this unusual location.

Case presentationWe report a case of primary myelolipoma occurring in the kidney of a 55-year-old Moroccan man. We describe the radiological and clinicopathologic features of this unusual tumor with a review of the literature, and we discuss differential diagnosis of retroperitoneal myelolipomas.

ConclusionThis case is noteworthy because the tumor site was unusual. Although renal myelolipoma is rare, it should be considered in the differential diagnosis of lesions in this site.

KeywordsExtra-adrenal myelolipoma Myelolipoma Renal myelolipoma Retroperitoneal tumors AbbreviationsCTComputed tomography

MRIMagnetic resonance imaging


Electronic supplementary materialThe online version of this article doi:10.1186-1752-1947-7-92 contains supplementary material, which is available to authorized users.

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Autor: Merieme Ghaouti - Kaoutar Znati - Ahmed Jahid - Fouad Zouaidia - Zakiya Bernoussi - Najat Mahassini


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