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Ghosn Y, Alam R, El Annan T, Haddad G, Khdhir M, Farhat L, Hafez R, Moukaddam H, Khoury N, Khouzami R. Para-articular and intra-articular soft tissue lesions: Radiologic-pathologic correlation. Eur J Radiol 2024; 181:111718. [PMID: 39357286 DOI: 10.1016/j.ejrad.2024.111718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/27/2024] [Accepted: 09/01/2024] [Indexed: 10/04/2024]
Abstract
Articular masses comprise various disease entities including benign or malignant proliferative processes and other non-neoplastic processes such as infection, deposition diseases, vascular malformations, and other lesions. Many diseases that lead to intra-articular or para-articular masses have distinct imaging features, particularly on MRI. Radiologists can localize masses to the joint space by knowing the articular anatomy and can reach a suggested diagnosis by looking at precise imaging findings. In this review article, we first define the concept of articular space (intraarticular, para-articular) and the normal joint anatomy and histology. We provide a general and comprehensive approach for evaluation of articular lesions on MRI. We then describe specific imaging and histologic features of typical benign and malignant soft tissue articular neoplasms and some non-neoplastic mimickers; and provide a radio-pathologic correlation of the different described entities.
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Affiliation(s)
- Youssef Ghosn
- Department of Diagnostic Radiology, American University of Beirut, Lebanon.
| | | | - Tamara El Annan
- Department of Diagnostic Radiology, American University of Beirut, Lebanon.
| | | | - Mihran Khdhir
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, USA
| | - Lama Farhat
- Department of Pathology, American University of Beirut, Lebanon.
| | - Rayan Hafez
- Department of Pathology, American University of Beirut, Lebanon.
| | - Hicham Moukaddam
- Department of Diagnostic Radiology, American University of Beirut, Lebanon.
| | - Nabil Khoury
- Department of Diagnostic Radiology, American University of Beirut, Lebanon.
| | - Riad Khouzami
- Department of Diagnostic Radiology, American University of Beirut, Lebanon.
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Gambarotti M, Pacheco M, Ruengwanichayakun P, Silvino Vega Jiménez B, Benini S, Bianchi G, Sbaraglia M, Vanel D, Carretta E, Bertoni F, Franchi A, Dei Tos AP, Righi A. Synovial chondrosarcoma: a single-institution experience with molecular investigations and review of the literature. Histopathology 2020; 77:391-401. [PMID: 32506447 DOI: 10.1111/his.14170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/29/2020] [Accepted: 06/02/2020] [Indexed: 12/11/2022]
Abstract
AIMS To evaluate the available diagnostic histological criteria for synovial chondrosarcoma and to screen for the presence of IDH1/IDH2 mutations in a series of cases of this malignant cartilaginous neoplasm. METHODS AND RESULTS Ten cases of synovial chondrosarcoma diagnosed at our institute were reviewed. At presentation, all tumours occurred in adults (median age, 62 years). The most common location was the knee joint (five cases), and the size at diagnosis ranged from 30 mm to 170 mm. Eight patients had secondary synovial chondrosarcomas associated with pre-existing/recurrent or concomitant synovial chondromatosis. Five patients had local recurrences and three had lung metastases. All patients with intralesional excisions developed local recurrences, whereas those who underwent wide resections did not. At last follow-up (mean, 91 months), available for nine patients, seven patients were alive and disease-free, one patient had died of disease, and one was alive with paravertebral metastases. Frequent histological features observed included loss of clustering of chondrocytes (nine cases), the presence of variable amounts of myxoid matrix (eight cases), peripheral hypercellularity (eight cases), tumour necrosis (six cases), and spindling of chondrocytes (four cases). Of the seven cases for which it was possible to evaluate bone permeation, six showed infiltration of bone marrow. All seven cases screened for mutations of exon 4 of IDH1 and IDH2 were found to be wild-type. CONCLUSIONS Histological criteria in correlation with clinical and radiological features allow the recognition of synovial chondrosarcoma. IDH1/IDH2 mutations were not present in synovial chondrosarcoma. Adequate surgical margins are important for disease control.
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Affiliation(s)
- Marco Gambarotti
- Department of Pathology, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Marina Pacheco
- Department of Pathology, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
| | | | | | - Stefania Benini
- Department of Pathology, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giuseppe Bianchi
- Department of Orthopaedic Oncology, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Marta Sbaraglia
- Department of Pathology, Azienda Ospedale Università, Padova, Italy
| | - Daniel Vanel
- Department of Pathology, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Elisa Carretta
- Statistical Service, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Franco Bertoni
- Department of Pathology, Villa Erbosa Hospital, Bologna, Italy
| | - Alessandro Franchi
- Department of Translational Research, University of Padua School of Medicine, Pisa, Italy
| | - Angelo P Dei Tos
- Department of Pathology, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy.,Department of Pathology, Azienda Ospedale Università, Padova, Italy.,Department of Medicine, School of Medicine, University of Pisa, Padua, Italy
| | - Alberto Righi
- Department of Pathology, IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
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Biazzo A, Confalonieri N. Synovial chondrosarcoma. ANNALS OF TRANSLATIONAL MEDICINE 2016; 4:280. [PMID: 27570774 PMCID: PMC4980367 DOI: 10.21037/atm.2016.06.23] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 05/24/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND Synovial chondrosarcoma (SCH) is a very rare tumor arising in the intra-articular cavity. In the majority of literature reports it is described as a malignant transformation of a pre-existing synovial chondromatosis (SC). We reported a systematic review of primary and secondary SCH described in the literature with the aim to recollect data from different case-reports and case-series, trying to summarize general aspects of this very rare disease. METHODS We collected 42 abstracts in the form of case series and case reports, which reported 67 cases of SCH. Studies were taken into account only if they proved a histological diagnosis of SCH, either primary or secondary, with or without evidence of pre-existing SC. RESULTS The average age of SCH was 56.9 years, with prevalence for male sex. The average time of malignant transformation was 11.2 years. The most affected joint was the knee (47.7%), followed by hip (34.3%) and ankle (5.9%). SCH was described as de novo sarcoma only in 13 cases (19%). Surgery ended up with amputation in 59.7% of cases. Local recurrence rate was 28.3%. CONCLUSIONS We concluded that prognosis of SCH is worse than conventional one and we speculated this is due to the difficult site of the tumor (intraarticular), diagnostic delay and inappropriate previous treatments. We consider that a rapid deterioration of a SC or rapid recurrence after synoviectomy should be considered suspicious of malignant transformation and should be treated in a reference center.
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Affiliation(s)
- Alessio Biazzo
- Orthopaedic Department, ASST Gaetano Pini-CTO, via Bignami 1, Milano, Italy
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Watura C, Saifuddin A. Tophaceous calcium pyrophosphate dihydrate deposition disease of the knee mimicking an aggressive soft tissue tumour. BMJ Case Rep 2014; 2014:bcr-2014-203998. [PMID: 24916978 DOI: 10.1136/bcr-2014-203998] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Calcium pyrophosphate crystal deposition disease (CPPD), previously pseudogout, is the second most common crystal arthropathy after gout. There is increased radiographic prevalence associated with age, trauma and several metabolic disorders. Tophaceous CPPD (T-CPPD) is a rare form of CPPD which, though non-neoplastic, mimics a bone or soft tissue malignancy. T-CPPD usually presents as a mass in the temporomandibular joint and occasionally in the paraspinal tissues, but rarely in the joints of the extremities. We present an exceptionally rare case of T-CPPD that was subtle on plain radiography, presenting as a soft tissue mass in the knee joint.
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Affiliation(s)
- Christopher Watura
- Department of X-ray, Royal National Orthopaedic Hospital NHS Trust, Middlesex, Stanmore, UK
| | - Asif Saifuddin
- Department of X-ray, Royal National Orthopaedic Hospital NHS Trust, Middlesex, Stanmore, UK
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Cho YA, Yoon HJ, Hong SD, Lee JI, Hong SP. A giant radiopaque mass in the masticatory space. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 115:566-70. [DOI: 10.1016/j.oooo.2012.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Revised: 12/14/2011] [Accepted: 01/02/2012] [Indexed: 12/01/2022]
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