CASE REPORT article
Front. Oncol.
Sec. Surgical Oncology
A Case Report of Extra-Adrenal Retroperitoneal Myelolipoma
He Ying 1
li jun lin 1
wei na 1
zhang lan 1
liang mei heng 2
1. Medical Imaging Department, Thirteenth People's Hospital of Chongqing, Chongqing, China
2. Department of Radiology, People's Hospital of Shapingba District Chongqing City, Chongqing, China
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Abstract
Myelolipoma is a benign tumor composed of mature adipose tissue and 3 hematopoietic elements, typically found in the bone marrow. It mainly occurs in the 4 adrenal gland, with only over 50 cases of extrarenal myelolipoma reported in 5 literature, and extrarenal renal myelolipoma occurring in the posterior abdominal 6 cavity is particularly rare. Currently, there are only 6 reported cases abroad. We report 7 a case of extrarenal retroperitoneal medullary lipoma treated after abdominal pain, 8 which was misdiagnosed as well differentiated retroperitoneal liposarcoma before 9 surgery. The patient was successfully discharged after surgical resection. This paper 10 provides a detailed summary of the clinical presentation, imaging features, diagnosis, 11 and management course of this case, aiming to offer diagnostic and therapeutic 12 insights for clinicians and future research.
Summary
Keywords
case report, computed tomography, extra-adrenal, Myelolipoma, Retroperitoneal
Received
15 January 2026
Accepted
19 February 2026
Copyright
© 2026 Ying, lin, na, lan and heng. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: wei na
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