Abstract
Extrarenal angiomyolipoma is an uncommon disease entity and is rare in the retroperitoneum. We report a case of giant extrarenal retroperitoneal angiomyolipoma mimicking liposarcoma. A 35‐year‐old woman presented with a history of increased abdominal circumference and urinary frequency. Abdominal computerized tomography demonstrated a 24 × 21 × 16 cm retroperitoneal fatty tumor displacing the right kidney to the left upper quadrant of the abdomen. At laparotomy, the tumor was widely excised and the right kidney was successfully preserved. Final histologic examination identified the tumor as an angiomyolipoma. At 4‐month postoperative follow‐up, no evidence of tumor recurrence was found and the right kidney was fully functional.
Keywords: retroperitoneal angiomyolipoma
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References
- 1. Ditonno P, Smith RB, Koyle MA, et al. Extrarenal angiomyolipomas of the perinephric space. J Urol. 1992; 147: 447–450. [DOI] [PubMed] [Google Scholar]
- 2. Wang LJ, Lim KE, Wong YC, et al. Giant retroperitoneal angiomyolipoma mimicking liposarcoma. Br J Urol. 1997; 79: 1001–1002. [DOI] [PubMed] [Google Scholar]
- 3. Murphy DP, Glazier DB, Chenven ES, et al. Extrarenal retroperitoneal angiomyolipoma: nonoperative management. J Urol. 2000; 163: 234–235. [DOI] [PubMed] [Google Scholar]
- 4. Cavazza A, Giunta A, Pedrazzoli C, et al. Extrarenal retroperitoneal angiomyolipoma: description of a case and review of the literature. Pathologica. 2001; 93: 44–49. [PubMed] [Google Scholar]
- 5. Piccinini EE, Rosati G, Ugolini G, et al. Giant retroperitoneal angiomyolipoma. A case report. Hepatogastroenterology. 1999; 46: 182–184. [PubMed] [Google Scholar]
- 6. Wadih GE, Raab SS, Silverman JF. Fine needle aspiration cytology of renal and retroperitoneal angiomyolipoma. Report of two cases with cytologic findings and clinicopathologic pitfalls in diagnosis. Acta Cytol. 1995; 39: 945–950. [PubMed] [Google Scholar]
- 7. Hruban RH, Bhagavan BS, Epstein JI. Massive retroperitoneal angiomyolipoma. A lesion that may be confused with well‐differentiated liposarcoma. Am J Clin Pathol. 1989; 92: 805–808. [DOI] [PubMed] [Google Scholar]
- 8. de Santos LA, Ginaldi S, Wallace S. Computed tomography in liposarcoma. Cancer. 1981; 47: 46–54. [DOI] [PubMed] [Google Scholar]
- 9. Wang LJ, Lim KE, Wong YC, Chen CJ. Giant retroperitoneal angiomyolipoma mimicking liposarcoma. Br J Urol. 1997; 79: 1001–1002. [DOI] [PubMed] [Google Scholar]