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      Bladder lipoma: Moroccan case report

      case-report

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          Abstract

          Lipomas are encapsulated benign tumors typically found in the integument, central nervous system or gastrointestinal tract and represent the most common benign mesenchymal neoplasm in adults. Bladder lipoma is a rare tumor that has been reported in a handful of cases in medical literature. A literature review from PubMed, MEDLINE, EMBASE and Cochrane databases of bladder lipoma yielded less than 20 cases. We report a case of a 69 year-old Moroccan male patient with hematuria as a chief symptom. The diagnosis of bladder lipoma was suspected by flexible fibroscopy and assessed by transurethral resection. Macroscopic and histological examination revealed a lipomatous tumour with no sign of malignancy. There was no recurrence after one year of follow-up. Although bladder lipomas are rare entities, they must be considered in the differential diagnosis of bladder tumor. However, we should always keep in mind that any bladder tumor is malignant until proven otherwise.

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          Most cited references10

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          Leiomyoma of the bladder.

          We report 5 cases of leiomyoma of the bladder and review the literature. Because of its size and location, this tumor usually is asymptomatic unless urinary tract function is affected. Excretory urography and computerized tomography were useful in identifying the location, consistency and size of the lesions. Small lesions can be managed with transurethral resection and large lesions require segmental resection. Cystectomy is not indicated.
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            Retroperitoneal lipoma arising from the urinary bladder

            Retroperitoneal benign lipomas are extremely rare and represent about 2.9% of all primary retroperitoneal tumors. About 80% of the tumors in the retroperitoneal cavities are malignant neoplasms. We experienced a case of a retroperitoneal lipoma simulating an ovarian mature cystic teratoma. A diagnosis was correctly made by magnetic resonance imaging (MRI) prior to surgery, and a total tumorectomy was performed. The retroperitoneal lipoma was recognized to have arisen from the urinary bladder. Histological sections revealed a tumor consisting of typical adipose cells without atypia. These types of lipomas should be carefully followed-up because they often recur and undergo malignant transformations.
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              Giant mesenteric lipoma.

              Mesenteric lipoma is a rare benign tumor of mature fat cells. Asymptomatic abdominal mass, progressive abdominal distension, and intraperitoneal radiolucent fat density mass on computed tomography are the main diagnostic criteria. Main differential diagnosis is lipoblastoma or lipoblastomosis. Treatment is surgical excision. As an unusual case, a 3-year-old boy with a giant mesenteric lipoma is presented in this report.
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                Author and article information

                Journal
                Pan Afr Med J
                Pan Afr Med J
                PAMJ
                The Pan African Medical Journal
                The African Field Epidemiology Network
                1937-8688
                29 December 2020
                2020
                : 37
                : 380
                Affiliations
                [1 ]Department of Urology, Military Teaching Hospital Rabat, Rabat, Morocco,
                [2 ]Department of Pathology, Military Teaching Hospital Rabat, Rabat, Morocco
                Author notes
                Corresponding author: Omar Jendouzi, Department of Urology, Military Teaching Hospital Rabat, Rabat, Morocco. jendouziiomar@ 123456gmail.com
                Article
                PAMJ-37-380
                10.11604/pamj.2020.37.380.25672
                7992428
                33796193
                f3e813ac-96b1-4416-8fb1-ad24a00af698
                Copyright: Omar Jendouzi et al.

                The Pan African Medical Journal (ISSN: 1937-8688). This is an Open Access article distributed under the terms of the Creative Commons Attribution International 4.0 License ( https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 20 August 2020
                : 27 December 2020
                Categories
                Case Report

                Medicine
                bladder,lipoma,benign neoplasm,case report
                Medicine
                bladder, lipoma, benign neoplasm, case report

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