Bizarre Parosteal Osteochondromatous Proliferation: Nora's Lesion

AuthorS Chaabaneen
AuthorMouna Chelli Bouazizen
AuthorK H Ben Gharsen
AuthorL Abiden
AuthorM H Jaafouraen
AuthorM F Ladeben
Issued Date2011-06-30en
AbstractThe purpose of this study was to review the imaging and anatomopathologic findings and to discuss the main differential diagnosis of bizarre parosteal osteochondromatous proliferation (BPOP) or Nora's lesion, a rare benign surface lesion of the bone. Plain radiographs, ultrasound, CT and MRI images of four patients with BPOP, histologically confirmed, were obtained and retrospectively reviewed. Three cases involving the hand and one involving the foot are reported. On plain radiographs, BPOP is a well-marginated, calcified or ossified mass arising directly from the cortical surface of the underlying bone. Ultrasound images show a low echoic peripheral cap around the lesion. CT images show the wide base of the lesion. On MRI, BPOP was of a low signal on T1, enhancing following gadolinium administration. Underlying bone and adjacent surrounding soft tissues were normal.en
DOIhttps://doi.org/en
KeywordParosteal Osteochondromaen
KeywordBoneen
KeywordRadiographyen
KeywordUltrasounden
KeywordCTen
KeywordMRIen
PublisherBrieflandsen
TitleBizarre Parosteal Osteochondromatous Proliferation: Nora's Lesionen
TypeCase Reporten

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