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Research Square Jun 2024Enchondromas are a common tumor in bone that can occur as multiple lesions in enchondromatosis, which is associated with deformity of the effected bone. These lesions...
Single-cell transcriptomic analyses of mouse idh1 mutant growth plate chondrocytes reveal distinct cell populations responsible for longitudinal growth and enchondroma formation.
Enchondromas are a common tumor in bone that can occur as multiple lesions in enchondromatosis, which is associated with deformity of the effected bone. These lesions harbor mutations in and driving expression of a mutant in Col2 expressing cells in mice causes an enchondromatosis phenotype. In this study we compared growth plates from E18.5 mice expressing a mutant with control littermates using single cell RNA sequencing. Data from Col2 expressing cells were analyzed using UMAP and RNA pseudo-time analyses. A unique cluster of cells was identified in the mutant growth plates that expressed genes known to be upregulated in enchondromas. There was also a cluster of cells that was underrepresented in the mutant growth plates that expressed genes known to be important in longitudinal bone growth. Immunofluorescence showed that the genes from the unique cluster identified in the mutant growth plates were expressed in multiple growth plate anatomic zones, and pseudo-time analysis also suggested these cells could arise from multiple growth plate chondrocyte subpopulations. This data identifies subpopulations of cells in control and mutant growth plates, and supports the notion that a mutant alters the subpopulations of growth plate chondrocytes, resulting a subpopulation of cells that become enchondromas at the expense of other populations that contribute to longitudinal growth.
PubMed: 38883785
DOI: 10.21203/rs.3.rs-4451086/v1 -
JTCVS Techniques Apr 2024
PubMed: 38835564
DOI: 10.1016/j.xjtc.2024.01.017 -
European Journal of Medical Genetics Feb 2024The Italian patient association for Multiple Osteochondromas, Ollier Disease, and Maffucci Syndrome, Associazione Conto Alla Rovescia-ACAR Aps, conducted a mixed-methods...
The Italian patient association for Multiple Osteochondromas, Ollier Disease, and Maffucci Syndrome, Associazione Conto Alla Rovescia-ACAR Aps, conducted a mixed-methods study at its 2023 annual conference. The study included the Open Dialogue Approach and a feedback survey to identify the main priorities in the transitioning process from paediatric to adult healthcare for patients with Multiple Osteochondromas, Ollier Disease, and Maffucci Syndrome. The common needs identified by patients, families, caregivers, and healthcare professionals were coordination and continuity of care, patient empowerment and communication, social and practical support, and transition planning and support. This experience fostered a sense of collaboration and cooperation among stakeholders, helping to build trust and create a shared vision for improving the quality of care for these patients. Furthermore, it could be considered a starting point for other patient associations interested in using different approaches to identify the needs of their members and actively involve all stakeholders.
Topics: Adult; Humans; Child; Enchondromatosis; Exostoses, Multiple Hereditary; Delivery of Health Care; Communication
PubMed: 38040052
DOI: 10.1016/j.ejmg.2023.104891 -
Cureus Oct 2023Maffucci's syndrome is a rare congenital nonhereditary syndrome with less than 300 cases having been reported in the United States. It is characterized by multiple...
Maffucci's syndrome is a rare congenital nonhereditary syndrome with less than 300 cases having been reported in the United States. It is characterized by multiple enchondromas, hemangiomas, and rarely lymphangiomas. Enchondromas may undergo malignant transformation to chondrosarcomas. Surveillance plays a vital role in detecting early malignant transformation. Fluorodeoxyglucose (FDG) PET/CT, although falling out of favor, may be utilized as an imaging modality by physicians to determine such transformation, allowing for timely management and intervention. In this report, we share our experience with such a case.
PubMed: 37822693
DOI: 10.7759/cureus.46552 -
Cureus Aug 2023Ollier disease is a rare skeletal dysplasia characterized by the formation of multiple enchondromas (enchondromatosis), typically in the long bones of the extremities....
Ollier disease is a rare skeletal dysplasia characterized by the formation of multiple enchondromas (enchondromatosis), typically in the long bones of the extremities. These tumors are benign but can become complicated by the development of pathologic fractures, limb deformity, and malignant transformation to chondrosarcoma. Ollier disease has a highly variable presentation and is associated with a range of presenting findings; however, the most common presentation is a pathologic fracture. Surgical options include curettage and grafting of the enchondromas and, when displaced, fracture reduction and fixation. Of note, these fractures will heal without surgery. Regardless, all patients must be routinely monitored with yearly radiographs in order to detect malignant transformation as early as possible. In this report, we describe the case of an 11-year-old female who presented to her physician with pain and swelling of her right ring and small fingers after playing in a swimming pool with no obvious mechanism of trauma. A routine, plain radiographic evaluation of her hand revealed the presence of multiple enchondromatosis. We hope to use this case to highlight the surgical management options for young patients with Ollier disease and discuss circumstances in which surgical management may not be indicated.
PubMed: 37731444
DOI: 10.7759/cureus.43815 -
Experimental and Therapeutic Medicine Sep 2023Maffucci syndrome is an extremely rare disease which can manifest symptoms as early as childhood. It is estimated that there have been <300 cases reported globally;...
Maffucci syndrome is an extremely rare disease which can manifest symptoms as early as childhood. It is estimated that there have been <300 cases reported globally; however, this number is likely to be an underestimate. Maffucci syndrome is characterized by multiple enchondromas and soft tissue hemangiomas, which can cause growth and developmental malformations. In addition to bone deformities, pathological fractures and a loss of mobility, patients with Maffucci syndrome may develop secondary central chondrosarcoma and have a higher risk of developing non-skeletal malignant tumors, such as gliomas and mesenchymal ovarian tumors. The present study provides information for clinicians about this disease through the use of imaging, physical examinations, clinical manifestations and the treatment strategy used. There is need to summarize the existing cases of this disease around the world and produce an effective framework for the diagnosis, treatment and prevention of Maffucci syndrome, in order to better understand this disease. The present study reports on a 15-year-old male diagnosed with Maffucci syndrome. . Due to the risk of malignant tumor development in the absence of effective treatment, regular and careful observation through monitoring of tumor markers and imaging studies is important for patients with Maffucci syndrome. As cases of this disease are rare and case data is limited, it is difficult to create a clear treatment plan. There is an urgent need to establish a case database of Maffucci syndrome patients and explore its pathogenesis for early diagnosis, treatment and prevention of disease.
PubMed: 37602309
DOI: 10.3892/etm.2023.12134 -
Radiology Case Reports Oct 2023Ollier disease is an uncommon disease characterized by several enchondromas and an asymmetric distribution of cartilage lesions, which can vary significantly in size,...
Ollier disease is an uncommon disease characterized by several enchondromas and an asymmetric distribution of cartilage lesions, which can vary significantly in size, location, age, and gender. The primary symptom of this condition is a nonossifying chondrocyte mass or hamartomatous chondrocyte growth in the metaphysis of a short or long bone. Specific cases can progress to chondrosarcoma or osteosarcoma. X-ray is the most fundamental diagnostic technique for skeletal illnesses. In this article, we present a case of Ollier disease from Mother and Child Hospital IBN SINA, Rabat, Morocco.
PubMed: 37593331
DOI: 10.1016/j.radcr.2023.07.042 -
Journal of Orthopaedics and... Jul 2023Ollier's disease can cause severe length discrepancy of the lower extremities and deformity in children. Osteotomy and limb lengthening with external fixation can...
BACKGROUND
Ollier's disease can cause severe length discrepancy of the lower extremities and deformity in children. Osteotomy and limb lengthening with external fixation can correct the limb deformity. This study evaluated (1) whether the duration of external fixation was reduced in patients with Ollier's disease, and (2) the incidence of complications such as pin tract infection, external fixation loosening, and joint stiffness.
METHODS
Two groups were compared with respect to age, angular correction (AC), lengthening gap (LG), distraction index (DI), lengthening length (LL), lengthening length percentage (L%), lengthening index (LI), bone healing index (BHI), and external fixation index (EFI). Group 1 (Ollier's disease) comprised nine patients undergoing 11 lower limb lengthening procedures using external fixators; group 2 (control, normal lengthened bone) comprised 28 patients undergoing 29 lengthening procedures with external fixators.
RESULTS
In patients with Ollier's disease, full correction of the deformity and full restoration of length were achieved in all cases. In the femur, the mean AC (15.97° vs. 6.72°) and DI (1.11 mm/day vs. 0.78 mm/day) were significantly larger, while the LI (9.71 days/cm vs. 13.49 days/cm), BHI (27.00 days/cm vs. 42.09 days/cm), and EFI (37.86 days/cm vs. 56.97 days/cm) were all significantly shorter in group 1 than in group 2 (p < 0.05). In the tibia, the mean AC and L% were larger, while the LG, LI, BHI, and EFI were all shorter in group 1 than in group 2. There was no significant difference between the two groups in the incidence of complications.
CONCLUSION
In children with Ollier's disease, new bone formation accelerated and the healing speed of the lengthened segments was faster throughout the whole lengthening period with external fixation, and full correction of the deformity and full restoration of length could be achieved.
Topics: Osteogenesis; Humans; Male; Female; Infant; Child, Preschool; Child; Lower Extremity; Enchondromatosis; Bone Lengthening; Leg; Treatment Outcome; Femur; Tibia; Leg Length Inequality
PubMed: 37524995
DOI: 10.1186/s10195-023-00717-3 -
Medicina (Kaunas, Lithuania) May 2023: Maffucci syndrome is a rare genetic disorder associated with the development of multiple enchondromas and soft tissue cavernous hemangiomas, as well as an increased...
: Maffucci syndrome is a rare genetic disorder associated with the development of multiple enchondromas and soft tissue cavernous hemangiomas, as well as an increased risk of malignant tumors. : Here we report a case of Maffucci syndrome in a patient who presented with a giant left frontal lobe tumor. Molecular genetic analysis of the tumor revealed an isocitrate dehydrogenase (IDH) mutation p.R132H (c.395C>A) mutation in the IDH1 gene and a heterozygous duplication of the CDKN2A genes. : The presence of an IDH1 mutation is notable because this mutation is frequently seen in glial tumors and other neoplasms, and its co-occurrence with Maffucci syndrome may represent a novel risk factor for the development of gliomas. This case underscores the importance of genetic testing in patients with Maffucci syndrome who present with central nervous system tumors, as well as the need for further research to understand the relationship between IDH1 mutations and the development of gliomas in this population.
Topics: Humans; Enchondromatosis; Mutation; Astrocytoma; Genetic Testing; Isocitrate Dehydrogenase; Brain Neoplasms
PubMed: 37374260
DOI: 10.3390/medicina59061056 -
Annals of Medicine and Surgery (2012) Jun 2023Ollier disease is a rare genetic disorder characterized by the development of multiple enchondromas. The clinical manifestations of the disease vary widely, but patients...
UNLABELLED
Ollier disease is a rare genetic disorder characterized by the development of multiple enchondromas. The clinical manifestations of the disease vary widely, but patients often present with bone deformities and an increased risk of developing chondrosarcoma. Here, the authors present a case report of a 25-year-old male patient with a devastating and historic evolution of Ollier disease.
CASE PRESENTATION
At the age of 10, the patient developed a sub-centimeter mass in the first phalanx of the left middle finger, which subsequently grew in size. A biopsy was performed at the age of 14, which confirmed the diagnosis of chondroma. At the age of 14, the patient developed multiple large masses on the left hand, resulting in the amputation of his left hand. At 25 years old, the patient developed new masses in his contralateral hand and left foot.
DISCUSSION
Ollier disease is caused by somatic mutations in the PTH/PTHrP receptor gene, leading to the formation of multiple enchondromas. Patients with Ollier disease are at an increased risk of developing chondrosarcoma, which can be life-threatening. The diagnosis of Ollier disease is usually made based on clinical and radiographic findings, and genetic testing can confirm the diagnosis. Treatment is typically focused on managing the symptoms and preventing the development of chondrosarcoma.
CONCLUSION
The authors presented a case report of a patient with a devastating and historic evolution of Ollier disease. This case highlights the importance of early diagnosis and management of this disease to prevent the development of chondrosarcoma and minimize the risk of complications. Further research is needed to better understand the underlying mechanisms of the disease and develop effective treatments.
PubMed: 37363592
DOI: 10.1097/MS9.0000000000000678