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Plantar hyperhidrosis and pitted keratolysis treated with botulinum toxin injection
Bhertha M Tamura1, Luiz Carlos Cucé, Raquel Leão Souza
1General Hospital of the Medical School of the University of São Paulo, São Paulo, Brazil. tamurab@uol.com.br
Background:
Sulcate plantare keratolysis or pitted keratolysis (plantar keratolysis sulcatum) is a disease that is commonly found in tropical countries. Patients have also reported plantar hyperhidrosis.
Objective:
Two patients with pitted keratolysis resistant to topical and systemic treatments are described.
Methods:
Both patients were injected with botulinum toxin distributed evenly through the plantar extension.
Results:
The response to the treatment was excellent despite using a low dose of botulinum toxin with the plantar keratolysis healing completely.
Conclusion:
Hyperhidrosis may be considered the major etiologic factor for pitted keratolysis that does not respond to treatment.
