Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature Review

Extra-adrenal myelolipomas are rare, asymptomatic entities, although large tumors may cause local symptoms or hemorrhage. When these lesions occur outside the adrenals in the retroperitoneum, they are radiographically easily confused with both primary and secondary retroperitoneal tumors, which tend...

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Main Authors: Goran Benko, Andrina Kopjar, Marin Plantak, Danijel Cvetko, Vicko Glunčić, Anita Lukić
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Case Reports in Urology
Online Access:http://dx.doi.org/10.1155/2021/6614641
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author Goran Benko
Andrina Kopjar
Marin Plantak
Danijel Cvetko
Vicko Glunčić
Anita Lukić
author_facet Goran Benko
Andrina Kopjar
Marin Plantak
Danijel Cvetko
Vicko Glunčić
Anita Lukić
author_sort Goran Benko
collection DOAJ
description Extra-adrenal myelolipomas are rare, asymptomatic entities, although large tumors may cause local symptoms or hemorrhage. When these lesions occur outside the adrenals in the retroperitoneum, they are radiographically easily confused with both primary and secondary retroperitoneal tumors, which tend to be aggressive. Although myelolipomas are benign and can be managed conservatively, if malignancy is suspected, a surgical procedure is an option. We report a case of a 68-year-old patient with multiple perirenal extra-adrenal myelolipomas. Initial abdominal ultrasound reviled an inhomogeneous mass surrounding the left kidney. Subsequent CT examination of the abdomen showed four separate, extrarenal, well-circumscribed, round-shaped, fat-containing retroperitoneal tumors. Given the significant size of the masses, that compressed major abdominal vessels and the suspicion of liposarcoma, a surgical excision of the lesions was performed. The tumors were easily separated, all surrounding structures were spared, and they were removed completely. Histologically, all masses consisted of hematopoietic and mature fat tissue and the final diagnosis was extra-adrenal myelolipoma. The patient was released from the hospital 7th day after surgery in good condition and at his baseline. Since myelolipomas are, by definition, nonfunctional benign tumors, there was no need for further follow-up. The radiological evaluation and fine needle biopsy are usually sufficient to establish the diagnosis, but in some cases of well-differentiated liposarcoma, the differentiation between myelolipoma and liposarcoma can be challenging. Therefore, considering that myelolipomas and liposarcomas have opposite prognoses, which affects the surgeon’s decision on the extent of surgical procedure and further treatment, we also emphasize the importance of intraoperative assessment of the tumor, both by the surgeon and by intraoperative pathology consultation.
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spelling doaj-art-148ddcc5cd6f468e9708c91e96461e472025-02-03T00:58:46ZengWileyCase Reports in Urology2090-696X2090-69782021-01-01202110.1155/2021/66146416614641Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature ReviewGoran Benko0Andrina Kopjar1Marin Plantak2Danijel Cvetko3Vicko Glunčić4Anita Lukić5Department of Urology, Varaždin General Hospital, I. Meštrovića 1, Varaždin, CroatiaDepartment of Pathology, Varaždin General Hospital, I. Meštrovića 1, Varaždin, CroatiaDepartment of Urology, Varaždin General Hospital, I. Meštrovića 1, Varaždin, CroatiaDepartment of Radiology, Dubrava Clinical Hospital, Av. Gojka Šuška 6, Zagreb, CroatiaDepartment of Anesthesia, Advocate Illinois Masonic Medical Center, 836 W Wellington Ave, Chicago, IL 60657, USADepartment of Anaesthesiology, Reanimatology, and Intensive Care, Varaždin General Hospital, I. Meštrovića 1, Varaždin, CroatiaExtra-adrenal myelolipomas are rare, asymptomatic entities, although large tumors may cause local symptoms or hemorrhage. When these lesions occur outside the adrenals in the retroperitoneum, they are radiographically easily confused with both primary and secondary retroperitoneal tumors, which tend to be aggressive. Although myelolipomas are benign and can be managed conservatively, if malignancy is suspected, a surgical procedure is an option. We report a case of a 68-year-old patient with multiple perirenal extra-adrenal myelolipomas. Initial abdominal ultrasound reviled an inhomogeneous mass surrounding the left kidney. Subsequent CT examination of the abdomen showed four separate, extrarenal, well-circumscribed, round-shaped, fat-containing retroperitoneal tumors. Given the significant size of the masses, that compressed major abdominal vessels and the suspicion of liposarcoma, a surgical excision of the lesions was performed. The tumors were easily separated, all surrounding structures were spared, and they were removed completely. Histologically, all masses consisted of hematopoietic and mature fat tissue and the final diagnosis was extra-adrenal myelolipoma. The patient was released from the hospital 7th day after surgery in good condition and at his baseline. Since myelolipomas are, by definition, nonfunctional benign tumors, there was no need for further follow-up. The radiological evaluation and fine needle biopsy are usually sufficient to establish the diagnosis, but in some cases of well-differentiated liposarcoma, the differentiation between myelolipoma and liposarcoma can be challenging. Therefore, considering that myelolipomas and liposarcomas have opposite prognoses, which affects the surgeon’s decision on the extent of surgical procedure and further treatment, we also emphasize the importance of intraoperative assessment of the tumor, both by the surgeon and by intraoperative pathology consultation.http://dx.doi.org/10.1155/2021/6614641
spellingShingle Goran Benko
Andrina Kopjar
Marin Plantak
Danijel Cvetko
Vicko Glunčić
Anita Lukić
Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature Review
Case Reports in Urology
title Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature Review
title_full Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature Review
title_fullStr Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature Review
title_full_unstemmed Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature Review
title_short Rare Case of Multiple Perirenal, Extra-Adrenal Myelolipoma: Case Report, Current Management Options, and Literature Review
title_sort rare case of multiple perirenal extra adrenal myelolipoma case report current management options and literature review
url http://dx.doi.org/10.1155/2021/6614641
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