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Nodular sclerotic change in dermatofibrosarcoma protuberans: a potential diagnostic problem
1Department of Pathology, Kariya General Hospital, Sumiyoshicho 5-15, Kariya, Aichi 448-0852, Japan. hattori.kariya-gh.pathol@kariya-gh.or.jp
The British Journal of Dermatology
|February 18, 2003
Summary
Nodular sclerotic change is a rare finding in dermatofibrosarcoma protuberans (DFSP). Recognizing this histological variation is crucial for accurate diagnosis, especially with limited biopsy samples.
Area of Science:
- Dermatopathology
- Oncology
- Surgical Pathology
Background:
- Dermatofibrosarcoma protuberans (DFSP) is a rare, locally aggressive skin cancer.
- Histological variants of DFSP are recognized, but nodular sclerotic change is not well-documented.
Observation:
- Three cases of DFSP with nodular sclerotic change are presented.
- Histological examination revealed areas typical of DFSP alongside collagen-rich regions.
- Pigmented cells were present in two of the three cases, primarily within or around cellular areas.
Findings:
- The collagen-rich areas contained sparse, fibroblast-like cells positive for CD34.
- The distribution of typical DFSP and sclerotic components varied among the cases.
- One case showed distinct compartmentalization, another showed foci within sclerotic areas, and the third had a significant sclerotic component.
Implications:
- Nodular sclerotic change in DFSP can mimic other conditions, posing diagnostic challenges.
- Partial or small biopsy samples may obscure the diagnosis.
- Awareness of this histological variation and correlation with clinical history are vital for correct diagnosis.