Electrical potential difference between basal cell carcinoma, benign inflammatory lesions and normal tissue.
Measurement of the resting electrical potential difference on the surface of the skin has been made on patients with suspected basal cell carcinoma. It was demonstrated that in fifty-five lesions from forty-nine patients, the mean electrical potential difference from thirty-six basal cell carcinomas was found to be +II mV, from nineteen benign inflammatory lesions it was found to be +2 mV, and from normal skin, contra-lateral to the lesions in both groups, it was found to be -3 mV. All the measurements are relative to a reference electrode placed under the tongue. The difference between the me
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