Bizarre parosteal osteochondromatous proliferation: an educational review

Abstract Bizarre parosteal osteochondromatous proliferation (BPOP) is a surface-based bone lesion belonging to the group of benign chondrogenic tumors. The aim of this review is to familiarize the readers with imaging features and differential diagnosis of BPOP, also addressing pathological presenta...

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Main Authors: Salvatore Gitto, Francesca Serpi, Carmelo Messina, Domenico Albano, Andrea Di Bernardo, Elisabetta Armiraglio, Luca Cannavò, Simone Mazzoli, Alessandro Luzzati, Antonina Parafioriti, Luca Maria Sconfienza
Format: Article
Language:English
Published: SpringerOpen 2023-06-01
Series:Insights into Imaging
Subjects:
Online Access:https://doi.org/10.1186/s13244-023-01455-0
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author Salvatore Gitto
Francesca Serpi
Carmelo Messina
Domenico Albano
Andrea Di Bernardo
Elisabetta Armiraglio
Luca Cannavò
Simone Mazzoli
Alessandro Luzzati
Antonina Parafioriti
Luca Maria Sconfienza
author_facet Salvatore Gitto
Francesca Serpi
Carmelo Messina
Domenico Albano
Andrea Di Bernardo
Elisabetta Armiraglio
Luca Cannavò
Simone Mazzoli
Alessandro Luzzati
Antonina Parafioriti
Luca Maria Sconfienza
author_sort Salvatore Gitto
collection DOAJ
description Abstract Bizarre parosteal osteochondromatous proliferation (BPOP) is a surface-based bone lesion belonging to the group of benign chondrogenic tumors. The aim of this review is to familiarize the readers with imaging features and differential diagnosis of BPOP, also addressing pathological presentation and treatment options. The peak of incidence of BPOP is in the third and fourth decades of life, although it can occur at any age. Hands are the most common location of BPOP (55%), followed by feet (15%) and long bones (25%). On imaging, BPOP appears as a well-marginated mass of heterotopic mineralization arising from the periosteal aspect of the bone. Typical features of BPOP are contiguity with the underlying bone and lack of cortico-medullary continuity, although cortical interruption and medullary involvement have been rarely reported. Histologically, BPOP is a benign bone surface lesion characterized by osteocartilaginous proliferation with disorganized admixture of cartilage with bizarre features, bone and spindle cells. Differential diagnosis includes both benign—such as florid reactive periostitis, osteochondroma, subungual exostosis, periosteal chondroma and myositis ossificans—and malignant lesions—such as periosteal chondrosarcoma and surface-based osteosarcoma. Treatment consists of surgical resection. Local recurrences are common and treated with re-excision. Critical relevance statement Bizarre parosteal osteochondromatous proliferation is a benign mineralized mass arising from the periosteal aspect of bone cortex. Multi-modality imaging characteristics, pathology features and differential diagnosis are here highlighted to familiarize the readers with this entity and offer optimal patient care.
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spelling doaj.art-e6bc393a2dd641b8ad5760053400927b2023-06-25T11:19:23ZengSpringerOpenInsights into Imaging1869-41012023-06-0114111210.1186/s13244-023-01455-0Bizarre parosteal osteochondromatous proliferation: an educational reviewSalvatore Gitto0Francesca Serpi1Carmelo Messina2Domenico Albano3Andrea Di Bernardo4Elisabetta Armiraglio5Luca Cannavò6Simone Mazzoli7Alessandro Luzzati8Antonina Parafioriti9Luca Maria Sconfienza10IRCCS Istituto Ortopedico GaleazziDipartimento di Scienze Biomediche per la Salute, Università degli Studi di MilanoIRCCS Istituto Ortopedico GaleazziIRCCS Istituto Ortopedico GaleazziPathology Department, ASST Pini-CTOPathology Department, ASST Pini-CTOIRCCS Istituto Ortopedico GaleazziIRCCS Istituto Ortopedico GaleazziIRCCS Istituto Ortopedico GaleazziPathology Department, ASST Pini-CTOIRCCS Istituto Ortopedico GaleazziAbstract Bizarre parosteal osteochondromatous proliferation (BPOP) is a surface-based bone lesion belonging to the group of benign chondrogenic tumors. The aim of this review is to familiarize the readers with imaging features and differential diagnosis of BPOP, also addressing pathological presentation and treatment options. The peak of incidence of BPOP is in the third and fourth decades of life, although it can occur at any age. Hands are the most common location of BPOP (55%), followed by feet (15%) and long bones (25%). On imaging, BPOP appears as a well-marginated mass of heterotopic mineralization arising from the periosteal aspect of the bone. Typical features of BPOP are contiguity with the underlying bone and lack of cortico-medullary continuity, although cortical interruption and medullary involvement have been rarely reported. Histologically, BPOP is a benign bone surface lesion characterized by osteocartilaginous proliferation with disorganized admixture of cartilage with bizarre features, bone and spindle cells. Differential diagnosis includes both benign—such as florid reactive periostitis, osteochondroma, subungual exostosis, periosteal chondroma and myositis ossificans—and malignant lesions—such as periosteal chondrosarcoma and surface-based osteosarcoma. Treatment consists of surgical resection. Local recurrences are common and treated with re-excision. Critical relevance statement Bizarre parosteal osteochondromatous proliferation is a benign mineralized mass arising from the periosteal aspect of bone cortex. Multi-modality imaging characteristics, pathology features and differential diagnosis are here highlighted to familiarize the readers with this entity and offer optimal patient care.https://doi.org/10.1186/s13244-023-01455-0Bizarre parosteal osteochondromatous proliferationCartilaginous tumorPeriostitisNora lesionOsteochondroma
spellingShingle Salvatore Gitto
Francesca Serpi
Carmelo Messina
Domenico Albano
Andrea Di Bernardo
Elisabetta Armiraglio
Luca Cannavò
Simone Mazzoli
Alessandro Luzzati
Antonina Parafioriti
Luca Maria Sconfienza
Bizarre parosteal osteochondromatous proliferation: an educational review
Insights into Imaging
Bizarre parosteal osteochondromatous proliferation
Cartilaginous tumor
Periostitis
Nora lesion
Osteochondroma
title Bizarre parosteal osteochondromatous proliferation: an educational review
title_full Bizarre parosteal osteochondromatous proliferation: an educational review
title_fullStr Bizarre parosteal osteochondromatous proliferation: an educational review
title_full_unstemmed Bizarre parosteal osteochondromatous proliferation: an educational review
title_short Bizarre parosteal osteochondromatous proliferation: an educational review
title_sort bizarre parosteal osteochondromatous proliferation an educational review
topic Bizarre parosteal osteochondromatous proliferation
Cartilaginous tumor
Periostitis
Nora lesion
Osteochondroma
url https://doi.org/10.1186/s13244-023-01455-0
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