Chondrosarcoma in Metachondromatosis: A Rare Case Report
Khodamorad Jamshidi1, Tina Shooshtarizadeh1, Mehrdad Bahrabadi1
1Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.
Acta Medica Iranica
|January 28, 2018
Summary
Metachondromatosis is a rare genetic disorder involving osteochondromas and enchondromas, linked to the PTPN11 gene. This report details the second known case of chondrosarcoma developing in a patient with this condition.
Area of Science:
- Genetics
- Oncology
- Skeletal Dysplasias
Background:
- Metachondromatosis is a rare genetic disorder characterized by osteochondromas and enchondromas.
- It is caused by loss-of-function mutations in the PTPN11 gene.
- Distinctive features include specific lesion distribution and inheritance patterns, differentiating it from other cartilaginous tumors.
Observation:
- Osteochondromas typically affect the hands, feet, femur, and tibia.
- Enchondromas commonly involve the pelvic bones and femurs.
- Lesions are generally reported to regress in adulthood.
Findings:
- This study reports the second known case of chondrosarcoma arising in a patient with metachondromatosis.
- The PTPN11 gene is implicated in the pathogenesis of metachondromatosis.
Implications:
- This case highlights a rare but serious complication of metachondromatosis.
- Further research may elucidate the mechanisms linking PTPN11 mutations to chondrosarcoma development.
- Understanding these associations is crucial for patient monitoring and management.
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