{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T11:10:27Z","timestamp":1763464227249,"version":"3.45.0"},"reference-count":0,"publisher":"AVES YAYINCILIK A.\u015e.","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["AOTT"],"abstract":"<jats:p>Abstract\n\nBizarre parosteal osteochondromatous proliferation (BPOP, also known as Nora\u2019s lesion) is a rare, benign, locally aggressive condition defined as osteochondromatous exostosis arising from the bony cortex. BPOP presents predominantly in the 2nd and 3rd decades of life, and commonly arises from the periosteum of metacarpals and metatarses, though rare locations have been reported, including the long bones, the maxillae, the bones of calvaria, and the sesamoids. The case of an osteochondromatous lesion in an infant with an intra-abdominal mass arising from the iliac wing, an atypical location of benign solitary lesions, is reported. Benign solitary lesions are exceptional in this age group. The parents of the patient, who was born in term at 3600 grams, discovered a mass in the left groin and observed decreased movement in the lower left extremity. No history of trauma was reported. When the patient was 5 months of age, AP pelvic X-ray, computed tomography, and magnetic resonance imaging revealed a bony mass displacing intra-abdominal organs anteromedially. Biopsy reported an osteocartilaginous lesion with calcified mature cartilaginous fragments surrounded by plasmacytoid, monotone, fibrinoid cells in myxoid background. Differential diagnosis included osteochondroma, osteochondromyxoma, BPOP, fibrocartilaginous mesenchymoma, chondromyxoid fibroma, periosteal chondroma, soft tissue chondroma, myositis ossificans, and juxtacortical chondroma. Biopsy of the resected specimen determined a diagnosis of BPOP. At 6-month postoperative follow-up, neither symptoms nor complaints related to the mass were present.\n\n\u00d6zet\n\nBizzare parosteal osteokondromat\u00f6z proliferasyon (BPOP\/Nora lezyonu) nadir kar\u015f\u0131la\u015f\u0131lan, kemik korteksinden k\u00f6ken alan, benign, lokal agresif bir osteokondromat\u00f6z egzostoz  olarak tan\u0131mlan\u0131r. S\u0131kl\u0131kla 20-40 ya\u015f aras\u0131nda g\u00f6r\u00fcl\u00fcrken en s\u0131k metatakarp ve metatars periostunda olu\u015fur. Uzun kemikler, maksilla, kafa ve y\u00fcz kemikleri ve sesamoid kemikler literat\u00fcrde bildirilen nadir tutulum alanlar\u0131d\u0131r.  Yaz\u0131m\u0131zda; benzeri soliter kemik lezyonlar\u0131 i\u00e7in atipik lokasyon olarak kabul edilen iliak kanat kaynakl\u0131 retroperitoneal kitle nedeni ile tan\u0131 ve tedavisini de\u011ferlendirdi\u011fimiz bir infant olgumuzu sunduk.  Soliter kemik lezyonlar\u0131n\u0131n da bu ya\u015f grubu i\u00e7in ender rastlanan lezyonlar oldu\u011fu bilinmektedir. Ebeveynleri taraf\u0131ndan, hastada yenido\u011fan d\u00f6neminde, herhangi bir travma hikayesi olmaks\u0131z\u0131n, sol kas\u0131\u011f\u0131nda bir kitle ile birlikte, sol alt ekstremite hareketlerinin kar\u015f\u0131 tarafla mukayese edildi\u011finde daha az oldu\u011funu fark edilmi\u015f. 5 ayl\u0131kken fizik muayenesi ile birlikte de\u011ferlendirilen anteroposterior (AP) pelvik r\u00f6ntgen, bilgisayarl\u0131 tomografi (BT) ve manyetik rezonans (MR) incelemelerinde intraabdominal organlar\u0131 anteromediale iten bir kemik kitlesi tespit edilmi\u015f. Biyopsi sonras\u0131 yap\u0131lan mikroskopik incelemede kitle; plazmasitoid, monoton, fibrinoid h\u00fccreler ile \u00e7evrili, miksoid zeminde kalsifiye, mat\u00fcr k\u0131k\u0131rdak fragmanlar\u0131 olarak de\u011ferlendirilmi\u015f. Ay\u0131r\u0131c\u0131 tan\u0131da osteokondrom ve bizzare parosteal osteokondromat\u00f6z proliferasyon (BPOP\/Nora lezyonu), osteokondromiksoma, fibrokartilajin\u00f6z mezenkimoma, kondromiksiod fibroma, periosteal kondroma, yumu\u015fak doku kondromu, myositis ossifikans ve jukstakortikal kondroma tan\u0131lar\u0131 de\u011ferlendirildi. En-bloc rezeksiyon uyguland\u0131. Rezektat\u0131n biyopsisi sonras\u0131 histopatolojik olarak da de\u011ferlendirilen kitlede Nora lezyonu d\u00fc\u015f\u00fcn\u00fcld\u00fc. Cerrahi sonras\u0131 6 ayl\u0131k takiplerinde rek\u00fcrrens veya cerrahiye ba\u011fl\u0131 a\u011fr\u0131 tespit edilmedi.\n\n \n\nBu \u00f6zet, makalenin hen\u00fcz redaksiyonu tamamlanmam\u0131\u015f haline aittir ve bilgi verme ama\u00e7l\u0131d\u0131r. Yay\u0131n a\u015famas\u0131nda de\u011fi\u015fiklik g\u00f6sterebilir.<\/jats:p>","DOI":"10.3944\/aott.2016.13.0141","type":"journal-article","created":{"date-parts":[[2016,3,4]],"date-time":"2016-03-04T07:32:14Z","timestamp":1457076734000},"page":"120-124","source":"Crossref","is-referenced-by-count":1,"title":["Congenital bizarre parosteal osteochondromatous proliferation in unusual location and age: a case report"],"prefix":"10.5152","volume":"50","author":[{"given":"Sami","family":"Sokucu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Osman","family":"Emre Aycan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yavuz","family":"Ar\u0131kan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yavuz","family":"Selim Kabukcuoglu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"3111","published-online":{"date-parts":[[2020,2,7]]},"container-title":["Acta Orthopaedica et Traumatologica Turcica"],"original-title":[],"link":[{"URL":"https:\/\/aott.org.tr\/index.php\/pub\/article\/download\/3094\/3046","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T11:07:29Z","timestamp":1763464049000},"score":1,"resource":{"primary":{"URL":"https:\/\/aott.org.tr\/index.php\/pub\/article\/view\/3094"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,2,7]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2016,1,1]]}},"URL":"https:\/\/doi.org\/10.3944\/aott.2016.13.0141","relation":{},"ISSN":["2589-1294","1017-995X"],"issn-type":[{"type":"electronic","value":"2589-1294"},{"type":"print","value":"1017-995X"}],"subject":[],"published":{"date-parts":[[2020,2,7]]}}}