Basal Cell Carcinoma and Seborrheic Keratosis

  title={Basal Cell Carcinoma and Seborrheic Keratosis},
  author={Nicola Fusco and Gianluca Lopez and Umberto Gianelli},
  journal={International Journal of Surgical Pathology},
  pages={464 - 464}
Basal cell carcinoma is the most common cutaneous malignancy, accounting for approximately 70% of all nonmelanoma skin cancers. This tumor can occasionally be observed in association with seborrheic keratosis, the most common benign tumor of the epidermis. The clonal relationship between basal cell carcinoma and seborrheic keratosis is still a matter of controversy, and the debate as to whether this exceedingly rare association constitutes a collision tumor or is generated by phenomena of tumor… 
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