This white plaque forms on the lower lip after years of sun exposure. This is felt to be a premalignant lesion.
A white plaque forms on the lower lip. The edge closest to the oral cavity is usually well-defined whereas the edge closest to the skin fades out gradually. The clinician should palpate the lesion to make sure there is no underlying induration or nodule. If any is present, a biopsy should be performed to exclude a squamous cell carcinoma.
The lesion should be frozen with liquid nitrogen. If it does not resolve, it should be biopsied. The patient should be instructed to protect the lower lip from chronic sun exposure and to return anytime the lip is not normal. The lip deserves special surveillance as lip SCCs more frequently metastasize.
It is not the intention of RegionalDerm.com to provide specific medical advice, diagnosis or treatment. RegionalDerm.com only intends to provide users with information regarding various medical conditions for educational purposes and will not provide specific medical advice. Information on RegioinalDerm.com is not intended as a substitute for seeking medical treatment and you should always seek the advice of a qualified healthcare provider for diagnosis and for answers to your individual questions. Information contained on RegoinalDerm.com should never cause you to disregard professional medical advice or delay seeking treatment. If you live in the United States and believe you are having a medical emergency call 911 immediately.