{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T08:32:51Z","timestamp":1787646771006,"version":"build-2736575974"},"reference-count":24,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2023,11,6]],"date-time":"2023-11-06T00:00:00Z","timestamp":1699228800000},"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":[[2024,8]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>A soft tissue aneurysmal bone cyst is an extremely rare tumor. The objective of the article is to present the clinical, radiological, and histopathological features of a very unusual neoplasm of soft tissues.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case report<\/jats:title>\n                    <jats:p>A 13-year-old male patient presented a painful, mobile, and rapidly growing mass on the posteromedial aspect of his left knee. Imaging studies revealed a mass that arose from the medial surface of the distal sartorius muscle, with extension to the subcutaneous fat tissue. It was a well-circumscribed solid tumor with a peripheral rim calcification on plain film, computerized tomography, and ultrasound (zonal phenomenon). On magnetic resonance imaging, a heterogenous mass on T1-weighted images (WI) and T2-WI was seen, with a peripheral hypointense rim in both sequences. An outstanding edema on T2-WI extending to the soft tissue and muscles of the medial compartment of the knee was detected. The mass was resected, and the \u201ctumoral mimickers\u201d histopathological and molecular (next-generation sequencing) diagnoses confirmed a soft tissue aneurysmal bone cyst. A follow-up showed that the patient was free of disease 12 months after surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Soft tissue aneurysmal bone cyst is a rare tumor. Appropriate clinical and radiological correlation should be performed to differentiate it from other tumor mimickers.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10668969231208030","type":"journal-article","created":{"date-parts":[[2023,11,7]],"date-time":"2023-11-07T02:39:58Z","timestamp":1699324798000},"page":"1029-1036","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Soft Tissue Aneurysmal Bone Cyst in the Sartorius Muscle of a 13-Year-Old Boy Mimicking Myositis Ossificans: Case Report"],"prefix":"10.1177","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7113-045X","authenticated-orcid":false,"given":"Eva Manuela","family":"Pena-Burgos","sequence":"first","affiliation":[{"name":"La Paz University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriela","family":"Serra del Carpio","sequence":"additional","affiliation":[{"name":"La Paz University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Bernab\u00e9u","sequence":"additional","affiliation":[{"name":"La Paz University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jose Manuel","family":"Cordero Garc\u00eda","sequence":"additional","affiliation":[{"name":"La Paz University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eduardo Jose","family":"Ortiz-Cruz","sequence":"additional","affiliation":[{"name":"La Paz University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jose Juan","family":"Pozo-Kreilinger","sequence":"additional","affiliation":[{"name":"La Paz University Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2023,11,6]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/path.1711070106"},{"key":"e_1_3_2_3_2","first-page":"437","volume-title":"WHO Classification of Tumours Editorial Board. 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