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Dermatofibroma with osteoclast-like giant cells
M Kutchemeshgi1, R J Barr, C D Henderson
1Department of Dermatology, University of California, Irvine.
The American Journal of Dermatopathology
|October 1, 1992
Summary
Dermatofibroma with osteoclast-like giant cells is a rare variant of a common skin tumor. Recognizing this variant is crucial to avoid misdiagnosis with other bone and soft tissue tumors.
Area of Science:
- Dermatopathology
- Surgical Pathology
- Oncology
Background:
- Dermatofibroma (DF), a common cutaneous fibrous histiocytoma, presents with diverse morphologic variants.
- Alterations in component morphology and composition contribute to DF heterogeneity.
- DF with osteoclast-like giant cells is a less-studied variant.
Observation:
- This report details two cases of dermatofibroma exhibiting osteoclast-like giant cells.
- These giant cells are a notable feature within the typical DF stroma.
- Histologic examination revealed characteristic DF features alongside the giant cells.
Findings:
- The presence of osteoclast-like giant cells in DF can mimic other neoplastic processes.
- Differential diagnosis includes giant cell tumor of tendon sheath, giant cell tumor of bone, and giant cell reparative granuloma.
- Accurate identification relies on careful evaluation of the overall histologic pattern.
Implications:
- Misinterpretation of DF with osteoclast-like giant cells can lead to incorrect diagnoses.
- Distinguishing this variant from malignant neoplasms is critical for appropriate patient management.
- Awareness of this rare DF subtype aids pathologists in accurate diagnosis and treatment planning.