Ghaouti Merieme, Znati Kaoutar, Jahid Ahmed, Zouaidia Fouad, Bernoussi Zakiya, Mahassini Najat
Department of Pathology, Ibn Sina University Hospital, Rabat, Morocco.
J Med Case Rep. 2013 Apr 4;7:92. doi: 10.1186/1752-1947-7-92.
Myelolipomas 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.
We 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.
This 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.
肾上腺髓质脂肪瘤是一种罕见的由成熟脂肪组织和造血成分组成的良性肿瘤。它们大多发生于肾上腺，但肾上腺外髓质脂肪瘤也有在其他部位的报道，如骶前区、腹膜后、骨盆和纵隔。在此，我们报告一例罕见部位——肾实质内的肾上腺外髓质脂肪瘤病例。据我们所知，这是该不寻常部位报道的第三例病例。
我们报告一例发生于一名55岁摩洛哥男性肾脏的原发性髓质脂肪瘤病例。我们描述了这一不寻常肿瘤的影像学及临床病理特征，并复习了相关文献，同时讨论了腹膜后髓质脂肪瘤的鉴别诊断。
该病例值得关注，因其肿瘤部位不寻常。虽然肾髓质脂肪瘤罕见，但在该部位病变的鉴别诊断中应予以考虑。
