Advertisement
Research Article| Volume 49, ISSUE 6, P1081-1090, June 2023

Download started.

Ok

Current management of benign retroperitoneal tumors

  • Fabio Tirotta
    Affiliations
    Department of Sarcoma and General Surgery, Midlands Abdominal and Retroperitoneal Sarcoma Unit, University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom
    Search for articles by this author
  • Andrea Napolitano
    Affiliations
    Sarcoma Unit, The Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
    Search for articles by this author
  • Sangkyu Noh
    Affiliations
    Division of Surgical Oncology, Department of Surgery, Moores Cancer Center, University of California, UC San Diego Health Sciences, 3855 Health Sciences Drive, Room 2313, Mail Code 0987, La Jolla, San Dieg, CA, 92093-0987, USA

    College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, 91766-1854, USA
    Search for articles by this author
  • Erika Schmitz
    Affiliations
    Department of Surgery, The Ottawa Hospital and Research Institute, University of Ottawa, Ottawa, Ontario, Canada
    Search for articles by this author
  • Carolyn Nessim
    Affiliations
    Department of Surgery, The Ottawa Hospital and Research Institute, University of Ottawa, Ottawa, Ontario, Canada
    Search for articles by this author
  • Dakshesh Patel
    Affiliations
    Department of Radiology, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
    Search for articles by this author
  • Jason K. Sicklick
    Affiliations
    Division of Surgical Oncology, Department of Surgery, Moores Cancer Center, University of California, UC San Diego Health Sciences, 3855 Health Sciences Drive, Room 2313, Mail Code 0987, La Jolla, San Dieg, CA, 92093-0987, USA
    Search for articles by this author
  • Myles Smith
    Affiliations
    Sarcoma Unit, The Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
    Search for articles by this author
  • Khin Thway
    Affiliations
    Department of Pathology, The Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
    Search for articles by this author
  • Jos van der Hage
    Affiliations
    Department of Surgery, Leiden University Medical Center, Leiden, Netherlands
    Search for articles by this author
  • Samuel J. Ford
    Correspondence
    Corresponding author. Department of Sarcoma and General Surgery, Midlands Abdominal and Retroperitoneal Sarcoma Unit, University Hospital Birmingham NHS Foundation Trust, Mindelsohn Way, Birmingham, B15 2TH, UK.
    Affiliations
    Department of Sarcoma and General Surgery, Midlands Abdominal and Retroperitoneal Sarcoma Unit, University Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom
    Search for articles by this author
  • William W. Tseng
    Correspondence
    Corresponding author. Division of Surgical Onocology, Department of Surgery, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA, 91010, USA.
    Affiliations
    Division of Surgical Oncology, Department of Surgery, City of Hope National Medical Center, Duarte, CA, USA
    Search for articles by this author

      Abstract

      Benign retroperitoneal tumors (BRT) represent a rare group of heterogeneous diseases. The literature lacks high-quality evidence about the optimal management of BRT, and most of the information available takes the form of case reports or case series. The aim of this review is to provide an overview of current management strategies for adult patients with BRT.
      A literature search using PubMed indexed articles was conducted and BRT were classified into five different biological subgroups: 1) lipomatous tumors, 2) smooth muscle tumors, 3) peripheral nerve sheath tumors, 4) myofibroblastic tumors, and 5) others. Tumors that are primarily pelvic in origin were excluded.
      Despite the significant heterogeneity of the disease, several generic considerations have emerged and can be applied to the management of BRT. Specifically, the risk of misdiagnosing a BRT with another pathology such as retroperitoneal sarcoma is notable. When encountered, suspected BRT should therefore be referred to a specialized sarcoma center. Multidisciplinary tumor boards, present at these centers, have a pivotal role in managing BRT. The decision of whether to offer surgery, nonsurgical treatment or a “watch-and-wait” approach should be made after multidisciplinary discussion, depending on tumor histology. Moving forward, collaborative research efforts dedicated to BRT remain crucial in gathering evidence and knowledge to further optimize patient care.

      Keywords

      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to European Journal of Surgical Oncology
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      References

        • Berger-Richardson D.
        • Burtenshaw S.M.
        • Ibrahim A.M.
        • et al.
        Early and late complications of percutaneous core needle biopsy of retroperitoneal tumors at two tertiary sarcoma centers.
        Ann Surg Oncol. 2019; 26: 4692-4698
        • Almond L.M.
        • Tirotta F.
        • Tattersall H.
        • et al.
        Diagnostic accuracy of percutaneous biopsy in retroperitoneal sarcoma.
        Br J Surg. 2019; 106: 395-403
        • Tirotta F.
        • Morosi C.
        • Hodson J.
        • et al.
        Improved biopsy accuracy in retroperitoneal dedifferentiated liposarcoma.
        Ann Surg Oncol. 2020; 27: 4574-4581
        • Swallow C.J.
        • Strauss D.C.
        • Bonvalot S.
        • et al.
        Management of primary retroperitoneal sarcoma (RPS) in the adult: an updated consensus approach from the transatlantic australasian RPS working group.
        Ann Surg Oncol. 2021; 28: 7873-7888
        • Gronchi A.
        • Miah A.B.
        • Dei Tos A.P.
        • et al.
        Soft tissue and visceral sarcomas: ESMO-EURACAN-GENTURIS Clinical Practice Guidelines for diagnosis, treatment and follow-up.
        Ann Oncol. 2021; 32: 1348-1365
        • Yohannan J.
        • Feng T.
        • Allaf M.E.
        Retroperitoneal hibernoma in a 28-year-old man.
        Urology. 2011; 78: 320-321
        • Shaaban A.M.
        • Rezvani M.
        • Tubay M.
        • et al.
        Fat-containing retroperitoneal lesions: imaging characteristics, localization, and differential diagnosis.
        Radiographics. 2016; 36: 710-734
        • Caliò A.
        • Brunelli M.
        • Segala D.
        • et al.
        Angiomyolipoma of the kidney: from simple hamartoma to complex tumour.
        Pathology. 2021; 53: 129-140
        • Fittschen A.
        • Wendlik I.
        • Oeztuerk S.
        • et al.
        Prevalence of sporadic renal angiomyolipoma: a retrospective analysis of 61,389 in- and out-patients.
        Abdom Imag. 2014; 39: 1009-1013
        • Delhorme J.B.
        • Fontana A.
        • Levy A.
        • et al.
        Renal angiomyolipomas: at least two diseases. A series of patients treated at two European institutions.
        Eur J Surg Oncol. 2017; 43: 831-836
        • Ellingson J.J.
        • Coakley F.V.
        • Joe B.N.
        • et al.
        Computed tomographic distinction of perirenal liposarcoma from exophytic angiomyolipoma: a feature analysis study.
        J Comput Assist Tomogr. 2008; 32: 548-552
        • Silverstein M.L.
        • Kalof A.N.
        • Kurchena K.C.
        • et al.
        Diagnostic and management challenges for MDM2-, CDK4-negative fatty tumors of the retroperitoneum.
        J Cancer Res Clin Oncol. 2021; 147: 1137-1144
        • Sung C.K.
        • Kim S.H.
        • Woo S.
        • et al.
        Angiomyolipoma with minimal fat: differentiation of morphological and enhancement features from renal cell carcinoma at CT imaging.
        Acta Radiol. 2016; 57: 1114-1122
        • Liu Y.
        • Qu F.
        • Cheng R.
        • Ye Z.
        CT-imaging features of renal epithelioid angiomyolipoma.
        World J Surg Oncol. 2015; 13: 280
        • Bhatt J.R.
        • Richard P.O.
        • Kim N.S.
        • et al.
        Natural history of renal angio- myolipoma (AML): most patients with large AMLs >4cm can be offered active surveillance as an initial management strategy.
        Eur Urol. 2016; 70: 85-90
        • Kuusk T.
        • Biancari F.
        • Lane B.
        • et al.
        Treatment of renal angiomyolipoma: pooled analysis of individual patient data.
        BMC Urol. 2015; 15: 123
        • Chapman D.
        • Tyson M.
        • Buckley B.
        Single-institution, retrospective review of elective and emergency embolization of renal angiomyolipoma.
        Can Urol Assoc J. 2021; 15: E598-E602
        • Hatano T.
        • Egawa S.
        Renal angiomyolipoma with tuberous sclerosis complex: how it differs from sporadic angiomyolipoma in both management and care.
        Asian J Surg. 2020; 43: 967-972
        • Ambrogi G.
        • Murta M.M.
        • Moeda A.S.G.
        • et al.
        Extra-adrenal retroperitoneal myelolipoma resected by laparoscopy in an asymptomatic patient.
        Case Rep Surg. 2021; 20218849194
        • Cho J.
        • Kinsey D.
        • Kimchi E.T.
        • O'Carroll K.S.
        • Nguyen V.
        • Alsabbagh M.
        • et al.
        Retroperitoneal extra-adrenal myelolipoma misdiagnosed as liposarcoma: a case report.
        Radiol Case Rep. 2021; 16: 364-368
        • Rowe S.P.
        • Javadi M.S.
        • Solnes L.B.
        • et al.
        Appearance of adrenal myelolipomas on 2-deoxy-2-(18F) fluoro-D-glucose positron emission tomography-computed tomography.
        World J Nucl Med. 2017; 16: 271-274
        • Manov J.J.
        • Diaz-Bode A.
        • Kuker R.
        Hematopoietically active adrenal myelolipoma mimicking breast cancer metastasis.
        Clin Nucl Med. 2018; 43: 602-603
        • Pokrovskaya A.
        • Tarzimanova A.
        • Vetluzhskaya M.
        • et al.
        Rare case of symptomatic adrenal myelolipoma.
        BMJ Case Rep. 2021; 14
        • Lin L.
        • Gong L.
        • Cheng L.
        • et al.
        Adrenal myelolipoma: 369 cases from a high-volume center.
        Front Cardiovasc Med. 2021; 8663346
        • Kim D.S.
        • Lee J.W.
        • Lee S.H.
        Spontaneous rupture of adrenal myelolipoma as a cause of acute flank pain: a case report.
        World J Clin Cases. 2021; 9: 6552-6556
        • Fukushima M.
        • Schaefer I.M.
        • Fletcher C.D.
        Myolipoma of soft tissue: clinicopathologic analysis of 34 cases.
        Am J Surg Pathol. 2017; 41: 153-160
        • Takahashi Y.
        • Imamura T.
        • Irie H.
        • et al.
        Myolipoma of the retroperitoneum.
        Pathol Int. 2004; 54: 460-463
        • Teh J.S.
        • Weng C.Y.
        • Chang Y.Y.
        • et al.
        Intrathoracic myolipoma from parietal pleura with oestrogen and progesterone receptor.
        Respirol Case Rep. 2021; 9e0853
        • Fernández-Aguilar S.
        • Saint-Aubain N.
        • Dargent J.L.
        • et al.
        Myolipoma of soft tissue: an unusual tumor with expression of estrogen and progesterone receptors. Report of two cases and review of the literature.
        Acta Obstet Gynecol Scand. 2002; 81: 1088-1090
        • Ida C.M.
        • Wang X.
        • Erickson-Johnson M.R.
        • et al.
        Primary retroperitoneal lipoma: a soft tissue pathology heresy?: report of a case with classic histologic, cytogenetics, and molecular genetic features.
        Am J Surg Pathol. 2008; 32: 951-954
        • Bibi M.
        • Ben Rhouma S.
        • Ouanes Y.
        • et al.
        Fatty tumors of the retroperitoneum: lipoma or well-differentiated liposarcoma. About a case of a giant retroperitoneal liposarcoma.
        Urol Case Rep. 2018; 21: 58-60
        • Al-Ali M.H.M.
        • Salih A.M.
        • Ahmed O.F.
        • Kakamad F.H.
        • Mohammed S.H.
        • Hassan M.N.
        • et al.
        Retroperitoneal lipoma; a benign condition with frightening presentation.
        Int J Surg Case Rep. 2019; 57: 63-66https://doi.org/10.1016/j.ijscr.2019.02.044
        • Macarenco R.S.
        • Erickson-Johnson M.
        • Wang X.
        • Folpe A.A.
        • Rubin B.P.
        • Nascimento A.G.
        • et al.
        Retroperitoneal lipomatous tumors without cytologic atypia: are they lipomas? A clinicopathologic and molecular study of 19 cases.
        Am J Surg Pathol. 2009; 33: 1470-1476
        • Billings S.D.
        • Folpe A.L.
        • Weiss S.W.
        Do leiomyomas of deep soft tissue exist? An analysis of highly differentiated smooth muscle tumors of deep soft tissue supporting two distinct subtypes.
        Am J Surg Pathol. 2001; 25: 1134-1142
        • McCarthy A.J.
        • Chetty R.
        Benign smooth muscle tumors (leiomyomas) of deep somatic soft tissue.
        Sarcoma. 2018; 20182071394
        • Fasih N.
        • Prasad Shanbhogue A.K.
        • Macdonald D.B.
        • Fraser-Hill M.A.
        • Papadatos D.
        • Kielar A.Z.
        • et al.
        Leiomyomas beyond the uterus: unusual locations, rare manifestations.
        Radiogr Rev Publ Radiol Soc N Am Inc. 2008; 28: 1931-1948
        • Poliquin V.
        • Victory R.
        • Vilos G.A.
        Epidemiology, presentation, and management of retroperitoneal leiomyomata: systematic literature review and case report.
        J Minim Invasive Gynecol. 2008 Apr; 15: 152-160
        • Miettinen M.
        Smooth muscle tumors of soft tissue and non-uterine viscera: biology and prognosis.
        Mod Pathol Off J U S Can Acad Pathol Inc. 2014; 27: S17-S29
        • Arleo E.K.
        • Schwartz P.E.
        • Hui P.
        • McCarthy S.
        Review of leiomyoma variants.
        Am J Roentgenol. 2015; 205 (Oct 1): 912-921
        • Paal E.
        • Miettinen M.
        Retroperitoneal leiomyomas: a clinicopathologic and immunohistochemical study of 56 cases with a comparison to retroperitoneal leiomyosarcomas.
        Am J Surg Pathol. 2001; 25: 1355-1363
        • Barnaś E.
        • Książek M.
        • Raś R.
        • et al.
        Benign metastasizing leiomyoma: a review of current literature in respect to the time and type of previous gynecological surgery.
        PLoS One. 2017; 12e0175875
        • Tohya T.
        • Tajima T.
        • Takeshita Y.
        • et al.
        Case of concurrent benign metastasizing leiomyoma in the lung and retroperitoneum, with a focus on its etiology.
        J Obstet Gynaecol Res. 2014; 40: 2010-2013
        • Rizzo A.
        • Ricci A.D.
        • Saponara M.
        • Leo A.D.
        • Perrone A.M.
        • Iaco P.D.
        • et al.
        Recurrent uterine smooth-muscle tumors of uncertain malignant potential (STUMP): state of the art.
        Anticancer Res. 2020; 40: 1229-1238
        • Kurman R.J.
        • Carcangiu M.L.
        • Herrington C.S.
        World health organisation classification of tumours of the female reproductive organs [internet].
        International Agency for Research on Cancer, 2014
        • Mathew R.P.
        • Francis S.
        • Jayaram V.
        • et al.
        Uterine leiomyomas revisited with review of literature.
        Abdom Radiol N Y. 2021; 46: 4908-4926
        • Gupta M.
        • Laury A.L.
        • Nucci M.R.
        • et al.
        Predictors of adverse outcome in uterine smooth muscle tumours of uncertain malignant potential (STUMP): a clinicopathological analysis of 22 cases with a proposal for the inclusion of additional histological parameters.
        Histopathology. 2018; 73: 284-298
        • Huo L.
        • Wang D.
        • Wang W.
        • et al.
        Oncologic and reproductive outcomes of uterine smooth muscle tumor of uncertain malignant potential: a single center retrospective study of 67 cases.
        Front Oncol. 2020;
        • Bell S.W.
        • Kempson R.L.
        • Hendrickson M.R.
        Problematic uterine smooth muscle neoplasms. A clinicopathologic study of 213 cases.
        Am J Surg Pathol. 1994; 18: 535-558
        • Gadducci A.
        • Zannoni G.F.
        Uterine smooth muscle tumors of unknown malignant potential: a challenging question.
        Gynecol Oncol. 2019; 154: 631-637
        • Basaran D.
        • Usubutun A.
        • Salman M.C.
        • et al.
        The clinicopathological study of 21 cases with uterine smooth muscle tumors of uncertain malignant potential: centralized review can purify the diagnosis.
        Int J Gynecol Cancer Off J Int Gynecol Cancer Soc. 2018; 28: 233-240
        • KresakJL WalshM.
        Neurofibromatosis: a review of NF1, NF2, and schwannomatosis.
        J Pediatr Genet. 2016; 5: 98-104
        • Transatlantic Australasian Retroperitoneal Sarcoma Working Group
        Intercontinental collaborative experience with abdominal, retroperitoneal and pelvic schwannomas.
        Br J Surg. 2020; 107: 452-463
        • Bass J.C.
        • Korobkin M.
        • Francis I.R.
        • et al.
        Retroperitoneal plexiform neurofibromas: CT findings.
        AJR Am J Roentgenol. 1994; 163: 617-620
        • Saito H.
        • Suda T.
        • Kobayashi M.
        • et al.
        Neurofibroma in the retroperitoneum associated with neurofibromatosis type 1.
        BMJ Case Rep. 2021; 14e244364
        • Tovmassian D.
        • Abdul Razak M.
        • London K.
        The role of [18F]FDG-PET/CT in predicting malignant transformation of plexiform neurofibromas in neurofibromatosis-1.
        Int J Surg Oncol. 2016; 20166162182
        • Antonescu C.R.
        WHO, classification of tumours editorial board. Soft tissue and bone tumours.
        International Agency for Research on Cancer, Lyon2020
        • Mahajan P.
        • Casanova M.
        • Ferrari A.
        • et al.
        Inflammatory myofibroblastic tumor: molecular landscape, targeted therapeutics, and remaining challenges.
        Curr Probl Cancer. 2021; 45100768
        • Surabhi V.R.
        • Chua S.
        • Patel R.P.
        • et al.
        Inflammatory myofibroblastic tumors: current update.
        Radiol Clin. 2016; 54: 553-563
        • Lee C.J.
        • Schöffski P.
        • Modave E.
        • et al.
        Comprehensive molecular analysis of inflammatory myofibroblastic tumors reveals diverse genomic landscape and potential predictive markers for response to crizotinib.
        Clin Cancer Res. 2021;
        • Butrynski J.E.
        • D'Adamo D.R.
        • Hornick J.L.
        • et al.
        Crizotinib in ALK-rearranged inflammatory myofibroblastic tumor.
        N Engl J Med. 2010; 363: 1727-1733
        • Coffin C.M.
        • Hornick J.L.
        • Fletcher C.D.
        Inflammatory myofibroblastic tumor: comparison of clinicopathologic, histologic, and immunohistochemical features including ALK expression in atypical and aggressive cases.
        Am J Surg Pathol. 2007; 31: 509-520
        • Martínez-Trufero J.
        • Cruz Jurado J.
        • Hernández-León C.N.
        • et al.
        Uncommon and peculiar soft tissue sarcomas: multidisciplinary review and practical recommendations. Spanish Group for Sarcoma research (GEIS -GROUP). Part II.
        Cancer Treat Rev. 2021; 99102260
        • Casanova M.
        • Brennan B.
        • Alaggio R.
        • et al.
        Inflammatory myofibroblastic tumor: the experience of the European pedi- atric soft tissue sarcoma study group (EpSSG).
        Eur J Cancer. 2020; 127: 123-129
        • Zhao J.J.
        • Ling J.Q.
        • Fang Y.
        • et al.
        Intra-abdominal inflammatory myofibroblastic tumor: spontaneous regression.
        World J Gastroenterol. 2014; 20: 13625-13631
        • Penel N.
        • Coindre J.M.
        • Bonvalot S.
        • et al.
        Management of desmoid tumours: a nationwide survey of labelled reference centre net- works in France.
        Eur J Cancer. 2016; 58 (90e6)
        • Howard J.H.
        • Pollock R.E.
        Intra-abdominal and abdominal wall desmoid fibromatosis.
        Oncol Ther. 2016; 4: 57-72
        • Kasper B.
        • Stroebel P.
        • Hohenberger P.
        Desmoid tumors - clinical features and treatment options for advanced disease.
        Oncol. 2011; 16 (682e93)
        • Morosi C.
        • Stacchiotti S.
        • Marchianò A.
        • et al.
        Correlation between radiological assessment and histopathological diagnosis in retroperitoneal tumors: analysis of 291 consecutive patients at a tertiary reference sarcoma center.
        Eur J Surg Oncol. 2014; 40: 1662-1670
        • Lee K.C.
        • Lee J.
        • Kim B.H.
        • et al.
        Desmoid-type fibromatosis mimicking cystic retroperitoneal mass: case report and literature review.
        BMC Med Imag. 2018; 18: 29
        • Kasper B.
        • Baumgarten C.
        • Garcia J.
        • et al.
        An update on the management of sporadic desmoid-type fibromatosis: a European consensus initiative between sarcoma PAtients EuroNet (SPAEN) and European organization for research and treatment of cancer (EORTC)/Soft tissue and bone sarcoma group (STBSG).
        Ann Oncol. 2017; 28: 2399-2408
        • Group D.T.W.
        The management of desmoid tumours: a joint global consensus-based guideline approach for adult and paediatric patients.
        Eur J Cancer. 2020; 127: 96-107
        • Timbergen M.J.M.
        • Schut A.W.
        • Grünhagen D.J.
        • et al.
        Active surveillance in desmoid-type fibromatosis: a systematic literature review.
        Eur J Cancer. 2020; 137: 18-29
        • Geoerger B.
        • Hero B.
        • Harms D.
        • et al.
        Metabolic activity and clinical features of primary ganglioneuromas.
        Cancer. 2001; 91: 1905-1913
        • Rha S.E.
        • Byun J.Y.
        • Jung S.E.
        • et al.
        Neurogenic tumors in the abdomen: tumor types and imaging characteristics.
        Radiographics. 2003; 23: 29-43
        • Lora M.S.
        • Waguespack S.G.
        • Moley J.F.
        • et al.
        Adrenal ganglioneuromas in children with multiple endocrine neoplasia type 2: a report of two cases.
        J Clin Endocrinol Metab. 2005; 90: 4383-4387https://doi.org/10.1210/jc.2004-2526
        • Kamoun M.
        • Mnif M.F.
        • Rekik N.
        • et al.
        Ganglioneuroma of adrenal gland in a patient with Turner syndrome.
        Ann Diagn Pathol. 2010; 14: 133-136
        • Chetty R.
        • Duhig J.D.
        Bilateral pheochromocytoma-ganglioneuroma of the adrenal in type 1 neurofibromatosis.
        Am J Surg Pathol. 1993; 17: 837-841
        • Brady S.
        • Lechan R.M.
        • Schwaitzberg S.D.
        • et al.
        Composite pheochromocytoma/ganglioneuroma of the adrenal gland associated with multiple endocrine neoplasia 2A: case report with immunohistochemical analysis.
        Am J Surg Pathol. 1997; 21: 102-108
        • Diab D.L.
        • Faiman C.
        • Siperstein A.E.
        • et al.
        Virilizing adrenal ganglioneuroma in a woman with subclinical Cushing syndrome.
        Endocr Pract. 2008; 14: 584-587https://doi.org/10.4158/EP.14.5.584
        • Erem C.
        • Fidan M.
        • Civan N.
        • et al.
        Hormone-secreting large adrenal ganglioneuroma in an adult patient: a case report and review of literature.
        Blood Pres. 2014; 23: 64-69
        • Mendelsohn G.
        • Eggleston J.C.
        • Olson J.L.
        • et al.
        Vasoactive intestinal peptide and its relationship to ganglion cell differentiation in neuroblastic tumors.
        Lab Invest. 1979; 41: 144-149
        • Xie J.
        • Dai J.
        • Zhou W.L.
        • et al.
        Adrenal ganglioneuroma: features and outcomes of 42 cases in a Chinese population.
        World J Surg. 2018; 42: 2469-2475
        • Qing Y.
        • Bin X.
        • Jian W.
        • et al.
        Adrenal ganglioneuromas: a 10-year experience in a Chinese population.
        Surgery. 2010; 147: 854-860
        • De Bernardi B.
        • Gambini C.
        • Haupt R.
        • et al.
        Retrospective study of childhood ganglioneuroma.
        J Clin Oncol. 2008; 26: 1710-1716https://doi.org/10.1200/JCO.2006.08.8799
        • Decarolis B.
        • Simon T.
        • Krug B.
        • et al.
        Treatment and outcome of ganglioneuroma and ganglioneuroblastoma intermixed.
        BMC Cancer. 2016; 16: 542
        • Noh S.
        • et al.
        The natural history of ganglioneuroma: an international study by the transatlatic australasina retroperitoneal sarcoma working group.
        Connective Tissue Oncology Society AnnualMeeting, 2021
        • Kulkarni A.V.
        • Bilbao J.M.
        • Cusimano M.D.
        • et al.
        Malignant transformation of ganglioneuroma into spinal neuroblastoma in an adult. Case report.
        J Neurosurg. 1998; 88: 324-327
        • Davidson A.J.
        • Hartman D.S.
        Lymphangioma of the retroperitoneum: CT and sonographic characteristic.
        Radiology. 1990; 175: 507-510
        • Konen O.
        • Rathaus V.
        • Dlugy E.
        • et al.
        Childhood abdominal cystic lymphangioma.
        Pediatr Radiol. 2002 Feb; 32: 88-94
        • Mansour N.M.
        • Salyers Jr., W.J.
        Recurrence of a pancreatic cystic lymphangioma after diagnosis and complete drainage by endoscopic ultrasound with fine-needle aspiration.
        JOP. 2013; 14: 280-282
        • Paraskevakou H.
        • Orfanos S.
        • Diamantis T.
        • Konstantinidou A.
        • Patsouris E.
        Primary retroperitoneal mucinous cystadenoma: a rare case with two cysts and review of the literature.
        Hippokratia. 2014; 18: 278-281
        • Lee S.Y.
        • Han W.C.
        Primary retroperitoneal mucinous cystadenoma.
        Ann Coloproctol. 2016; 32: 33-37
        • Nardi W.S.
        • Dezanzo P.
        • Quildrian S.D.
        Primary retroperitoneal mucinous cystadenoma.
        Int J Surg Case Rep. 2017; 39: 218-220