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Updated: Jun 6, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
Cutaneous spindle cell squamous cell carcinoma in nevus sebaceous
Zhou-Wei Wu1, Wei-min Shi, Yue Sun
1Department of Dermatology, First People's Hospital of Shanghai, Jiaotong University, Shanghai, China.
A rapidly growing tumor in a nevus sebaceous was diagnosed as spindle-cell squamous cell carcinoma. This is the first reported case in English literature, emphasizing early nevus sebaceous excision.
Area of Science:
- Dermatology
- Oncology
- Pathology
Background:
- Nevus sebaceous is a congenital benign skin tumor.
- Malignant transformation within nevus sebaceous is rare.
- Spindle-cell squamous cell carcinoma is an uncommon variant of squamous cell carcinoma.
Observation:
- A 28-year-old male presented with a rapidly growing tumor in a pre-existing nevus sebaceous on his right cheek.
- The tumor exhibited characteristic features on histopathology and immunohistochemistry.
- This represents a unique clinical presentation within a known precursor lesion.
Findings:
- The excised tumor was definitively diagnosed as spindle-cell squamous cell carcinoma.
- This is the first documented instance of this specific malignancy arising in a nevus sebaceous in the English literature.
- The histological and immunohistochemical findings confirmed the diagnosis and subtype.
Implications:
- Highlights the potential for malignant transformation in nevus sebaceous.
- Underscores the importance of vigilant monitoring and early surgical excision of nevus sebaceous, especially those showing changes.
- Contributes to the understanding of rare cutaneous malignancies and their precursors.
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