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Updated: Feb 8, 2026

Evaluating the Effect of Pesticides on the Larvae of the Solitary Bees
Published on: October 15, 2021
Solitary plantar basal cell carcinoma
Maura Simonetti Junqueira Bourroul1, Ludmila Lopes Trindade1, Vanessa Soares do Nascimento1
1Dermatology Outpatient Clinic, Hospital Heliópolis, São Paulo, SP, Brazil.
Abstract:
Basal cell carcinoma is the most frequent skin cancer, generally located in hair-bearing, sunlight-exposed areas. Basal cell carcinoma usually occurs on the head and neck, but very rarely on extra-facial locations. We report a case of a 65-year-old woman presenting with a solitary non-healing ulcer on the sole of the right foot for two years. Histopathological examination showed a typical nodular basal cell carcinoma, confirmed by positivity to Ber-EP4 on immunohistochemistry. There was no history of trauma, exposure to noxious agents, basal cell nevus syndrome, or xeroderma pigmentosum.
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