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Giant cell fibroblastoma recurring as dermatofibrosarcoma protuberans
1Department of Pathology, University of Manitoba, Winnipeg, Canada.
The American Journal of Surgical Pathology
|August 1, 1991
Summary
Giant cell fibroblastoma, a rare pediatric tumor, can recur 15 years later as dermatofibrosarcoma protuberans. This suggests giant cell fibroblastoma may represent a juvenile form of dermatofibrosarcoma protuberans.
Area of Science:
- Pediatric Oncology
- Dermatopathology
- Surgical Pathology
Background:
- Giant cell fibroblastoma (GCF) is a rare, benign soft tissue tumor typically affecting children.
- Dermatofibrosarcoma protuberans (DFSP) is a rare, low-grade malignant soft tissue tumor known for local recurrence and metastasis.
Observation:
- A case of GCF in an 8-year-old child presented with local recurrence 15 years after initial diagnosis.
- The recurrent tumor exhibited the characteristic histological and immunohistochemical features of DFSP.
Findings:
- The clinical course and histological transformation suggest a potential relationship between GCF and DFSP.
- This case supports the hypothesis that GCF may be a juvenile or precursor form of DFSP.
Implications:
- GCF diagnosis in children warrants long-term follow-up due to the risk of malignant transformation to DFSP.
- Understanding this relationship can refine diagnostic criteria and treatment strategies for both GCF and DFSP.
- Further research is needed to elucidate the molecular mechanisms underlying the progression from GCF to DFSP.