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Open Access Publications from the University of California

Infiltrative basal cell carcinoma mimicking tinea corporis

  • Author(s): Xu, Ann
  • Patel, Viraat
  • Sutton, Leigh
  • Orengo, Ida
  • et al.
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License

The diagnosis of infiltrative basal cell carcinoma (BCC) can be delayed owing to its often subtle clinical findings. A 90-year-old woman presented with an asymptomatic annular pink plaque on her left shin that was clinically diagnosed as tinea corporis. After years of not responding to topical anti-fungal therapy, biopsies confirmed a diagnosis of infiltrative BCC. We discuss the differential diagnosis of the case, the difficulties in identifying infiltrative BCC, and the pathologic features of infiltrative BCC.

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