{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T08:33:17Z","timestamp":1787646797821,"version":"build-2736575974"},"reference-count":25,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T00:00:00Z","timestamp":1717718400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Int J Surg Pathol"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:p>Background: The occurrence of fumarate hydratase-deficient leiomyoma of the abdominal wall is exceptionally rare. Case Presentation: A 50-year-old female patient with a past medical history of fumarate hydratase-deficient uterine leiomyoma presented with a left lower quadrant abdominal mass that has been present for the past 2 years. An ultrasound revealed a 3.5 cm oval hypoechoic mass. A subsequent CT scan showed a 3.5 cm hyperdense mass within the left internal oblique musculature. No family history is noted. A biopsy of the mass exhibited bundles of spindle cell neoplasm exhibiting bizarre ovoid nuclei and eosinophilic cytoplasm. No evidence of mitotic figures or tumor necrosis was noted. Immunohistochemical staining showed positive staining for desmin and smooth muscle actin (SMA), but negative staining for MART-1, S100, and CD34. Lesional cells showed expression of 2-succinocysteine and loss of fumarate hydratase expression. A diagnosis of fumarate hydratase-deficient leiomyoma was rendered. Conclusion: This report reinforces the importance of considering genetic testing for fumarate hydratase mutations in the evaluation of extra-uterine leiomyomatous lesions. Comprehensive follow-up and clinical screening in individuals with new lesions and a known history of fumarate hydratase-deficient neoplasms is mandatory. Recent recommendations support the integration of morphology-based evaluation along with immunohistochemical staining and genetic testing as a part of the standard evaluation for all uterine leiomyomas.<\/jats:p>","DOI":"10.1177\/10668969241256118","type":"journal-article","created":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T05:19:45Z","timestamp":1717737585000},"page":"99-103","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Fumarate Hydratase-Deficient Abdominal Wall Leiomyoma Presenting a Decade Post-Fumarate Hydratase-Deficient Uterine Leiomyoma Excision: An Incidental or Syndromic Association?"],"prefix":"10.1177","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6145-256X","authenticated-orcid":false,"given":"Nada","family":"Shaker","sequence":"first","affiliation":[{"name":"The Ohio State University Wexner Medical Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zaibo","family":"Li","sequence":"additional","affiliation":[{"name":"The Ohio State University Wexner Medical Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nuha","family":"Shaker","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Pittsburgh Medical Center Health System"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-8569-6805","authenticated-orcid":false,"given":"Fnu","family":"Poombal","sequence":"additional","affiliation":[{"name":"Nishtar Medical College and Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Omar P.","family":"Sangueza","sequence":"additional","affiliation":[{"name":"Wake Forest University School of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dinesh","family":"Pradhan","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of Nebraska Medical Center"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,6,7]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2350-9-20"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1093\/hmg\/ddg148"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/cup.14559"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1097\/PGP.0000000000000423"},{"key":"e_1_3_2_6_2","unstructured":"Hereditary leiomyomatosis and renal cell carcinoma syndrome associated uterine smooth muscle tumors: bridging morphology and clinical screening\u2014PubMed. 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