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A case of perforating pilomatricoma
Harun Ciralik1, Yusuf Kenan Coban, Ozer Arican
1Department of Pathology, Kahramanmaras Sutcu Imam University, Faculty of Medicine, Kahramanmaras, Turkey.
The Journal of Dermatology
|May 17, 2006
Summary
Pilomatricoma, a rare skin neoplasm, can present atypically. This case highlights a large perforating pilomatricoma misdiagnosed as basal cell carcinoma, emphasizing biopsy importance.
Area of Science:
- Dermatology
- Pathology
- Oncology
Background:
- Pilomatricoma is a rare skin neoplasm, typically affecting the head and neck in young individuals.
- Perforating pilomatricoma is a rare variant presenting as a draining nodule or ulcer.
- The etiology of pilomatricoma remains largely unknown.
Observation:
- A 35-year-old female presented with a 4-month history of a growing 4-cm mass on her leg.
- Initial punch biopsy misdiagnosed the lesion as basal cell carcinoma.
- The lesion was a large, asymptomatic, erythematous, ulcerated mass.
Findings:
- Histopathological analysis revealed features of pilomatricoma, including shadow cells, squamoid cells, and calcification.
- The tumor also showed foreign body giant cells and inflammatory infiltrate.
- Diagnostic challenges arose due to the atypical presentation and initial misdiagnosis.
Implications:
- This case underscores the importance of thorough histopathological evaluation for cutaneous neoplasms.
- Large or atypical skin tumors may require multiple biopsies for accurate diagnosis.
- Awareness of pilomatricoma variants is crucial for appropriate clinical and pathological assessment.
