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Published on: October 4, 2024
Chondromyxoid fibroma
Adam M Budny1, Ameera Ismail, Lawrence Osher
1Nason Hospital, Roaring Spring, PA, USA. ABudnyDPM@gmail.com
Summary
Chondromyxoid fibroma, a rare benign bone tumor, typically affects long bones. This case highlights an unusual, incidental finding in a first metatarsal bone associated with hallux abductovalgus.
Area of Science:
- Orthopedic Oncology
- Skeletal Radiology
- Pediatric Orthopedics
Background:
- Chondromyxoid fibroma (CMF) is a rare, benign cartilaginous tumor, representing <1% of all bone neoplasms.
- Typically, CMF affects the metaphyseal regions of long bones in the second to third decades of life.
- Common symptoms include nonspecific pain and swelling at the affected site.
Observation:
- This report details an incidental finding of a CMF.
- The tumor was eccentrically located in the diaphysis of the first metatarsal.
- The finding occurred in a patient with juvenile hallux abductovalgus deformity, with no preceding symptoms.
Findings:
- The case presents an atypical location (diaphyseal first metatarsal) and presentation (incidental finding) of chondromyxoid fibroma.
- This contrasts with the classic metaphyseal involvement and symptomatic presentation in younger adults.
- The association with hallux abductovalgus deformity is noteworthy.
Implications:
- Highlights the importance of considering rare bone tumors even in atypical locations.
- Emphasizes the value of early detection and complete surgical resection for CMF to prevent recurrence.
- Suggests potential, though unproven, associations between foot deformities and bone tumors.
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