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Case Rep Nephrol. 2012;2012:374107. doi: 10.1155/2012/374107. Epub 2012 Jul 12.

Retroperitoneal extrarenal angiomyolipomas: an evidence-based approach to a rare clinical entity.

Case reports in nephrology

Emmanuel J Minja, Megan Pellerin, Nicole Saviano, Ronald S Chamberlain

Affiliations

  1. Department of Surgery, Saint Barnabas Medical Center, Livingston, NJ 07039, USA.
  2. School of Medicine, St. George's University, Grenada.
  3. Department of Pathology, Saint Barnabas Medical Center, Livingston, NJ 07039, USA.
  4. Department of Surgery, Saint Barnabas Medical Center, Livingston, NJ 07039, USA ; School of Medicine, St. George's University, Grenada ; Department of Surgery, University of Medicine and Dentistry of New Jersey, Newark, NJ, USA.

PMID: 24555133 PMCID: PMC3914176 DOI: 10.1155/2012/374107

Abstract

Extrarenal angiomyolipomas (ERAMLs) are rare tumors that present as incidentalomas upon imaging for other conditions. Retroperitoneal ERAMLs present a unique challenge from a diagnostic and treatment standpoint as they can mimic other benign and malignant retroperitoneal tumors. We present a case of a 39-year-old female with a 19.3 cm × 13.5 cm × 10.7 cm left extrarenal retroperitoneal mass. Histopathologic examination and HMB-45 staining revealed the mass to be a retroperitoneal ERAML. Our case report provides a comprehensive literature review and an evidence-based algorithm for taking care of patients with ERAMLs.

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