Melanoma is a type of skin cancer originating from the pigment producing cells in the skin called melanocytes. Though not as common as basal cell carcinoma and squamous cell carcinoma, it is more deadly because of its ability to spread to other parts of the body. Melanomas can have various appearances. The ABCDEs and Ugly Duckling Sign are two commonly used methods to help identify melanomas. The ABCDEs is a mnemonic used to remember warning signs for melanoma: A for Asymmetry, B for Borders being uneven or irregular, C for Color variation, D for Diameter > 6mm, and E for Evolving or changing lesion. The Ugly Duckling Sign is another common method used to identify concerning lesions. It is based on the concept that normal moles on an individual are likely to be similar in appearance. Any lesion or growth that appears different or stands out like an “ugly duckling” warrants further evaluation. As early detection and treatment are crucial for improving survival, any new, unusual, changing, or symptomatic growth should prompt a visit to your dermatologist.

The information on this website is provided for educational and information purposes only and is not medical advice. Always consult with a licensed medical provider and follow their recommendations regardless of what you read on this website. If you think you are having a medical emergency, dial 911 or go to the nearest emergency room. Links to other third-party websites are provided for your convenience only. If you decide to access any of the third-party websites, you do so entirely at your own risk and subject to the terms of use for those websites. Neither Commonwealth Dermatology, nor any contributor to this website, makes any representation, express or implied, regarding the information provided on this website or any information you may access on a third-party website using a link. Use of this website does not establish a doctor-patient relationship. If you would like to request an appointment with a health care provider, please call our office at (724) 260-5424.

Commonwealth Dermatology


3055 Washington Road Suite 203,
McMurray, PA 15317