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Radiologic-Pathologic Correlations of Fibrosarcomatous Dermatofibrosarcoma Protuberans With Various Histological
Michiyuki Hakozaki1, Hitoshi Yamada, Osamu Hasegawa
1From the Departments of *Orthopaedic Surgery, and †Radiology, Fukushima Medical University School of Medicine, Fukushima, Japan; and ‡Fukushima Pathology Laboratory, Fukushima, Japan.
Abstract:
Dermatofibrosarcoma protuberans (DFSP) is a cutaneous tumor of intermediate-grade malignant potential, and it rarely shows dedifferentiation to high-grade fibrosarcoma, which is called "fibrosarcomatous DFSP." We present the enhanced MRI and PET/MRI findings and our comparison with pathological findings in a case of fibrosarcomatous DFSP with various histological features.
Insights
Dermatofibrosarcoma protuberans (DFSP) rarely dedifferentiates into fibrosarcoma. This study details enhanced MRI and PET/MRI findings in a fibrosarcomatous DFSP case, correlating imaging with pathology.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Dermatofibrosarcoma protuberans (DFSP) is an intermediate-grade cutaneous malignancy.
- Dedifferentiation to high-grade fibrosarcoma (fibrosarcomatous DFSP) is rare.
- Accurate imaging is crucial for diagnosis and management.
Observation:
- This case presents a rare fibrosarcomatous DFSP.
- Enhanced MRI and PET/MRI were utilized for detailed imaging.
- The study involved a comparison between imaging and pathological findings.
Findings:
- Enhanced MRI and PET/MRI revealed specific characteristics of the fibrosarcomatous DFSP.
- Imaging findings were correlated with diverse histological features.
- The study provides insights into the imaging appearance of this rare variant.
Implications:
- Improved understanding of fibrosarcomatous DFSP imaging features.
- Potential for enhanced diagnostic accuracy using advanced MRI and PET/MRI techniques.
- Guidance for radiologists and pathologists in evaluating complex DFSP cases.

