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Bednar Tumor: A Rare Variant of Dermatofibrosarcoma Protuberans
Michelle Alcocer Salas1, Diana L Vazquez-Cantu1, Bryan Salvador Sol Tlapalamatl1
1Dermatology, Instituto Dermatológico de Jalisco "Dr. José Barba Rubio", Zapopan, MEX.
Cureus
|March 9, 2026
Summary
Dermatofibrosarcoma protuberans (DFSP), a rare skin cancer, can present as a pigmented variant called Bednar tumor. Early diagnosis and treatment are crucial due to its locally aggressive nature.
Area of Science:
- Dermatopathology
- Oncology
- Medical Case Reports
Background:
- Dermatofibrosarcoma protuberans (DFSP) is a rare, locally aggressive skin sarcoma with low metastatic potential.
- Uncommon variants of DFSP exist, including the pigmented form known as Bednar tumor.
- DFSP is exceptionally rare, with limited cases reported even in specialized centers.
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