Lip July 7, 2023 by Lip Lip - Benign Change: Vascular Malformation This picture shows a purple spot along the corner of the mouth where the lips meet. This is a vascular malformation, a term for an abnormal collection of blood vessels. There are many types, locations, and sizes of vascular malformations, and the need for treatment and types of treatment vary. Many vascular malformations cause no symptoms, are present since birth or for many years, and grow slowly, if at all. Some vascular malformations are more problematic, however. In general, these are more purple than black/gray, and most people will notice having had a stable appearing spot for many years. A doctor or dentist should examine a new, symptomatic (painful), or growing dark spot in the mouth. Lip Cancer - Minor Salivary Tumor This is a photo of a tumor developing from a minor salivary gland on the inside of the lip. The lips and cheeks are normally lined with small salivary glands that are soft and mobile. Any mass that persists longer than two weeks should be assessed by a medical provider. Lip Cancer - Squamous cell carcinoma This is an early squamous cell cancer of the lower lip. It presented as a non-healing sore on the lip. Lip Cancer - Melanoma This black, irregular-appearing lesion on the lower lip is a melanoma. Although the pictured lesion is very suspicious appearing, sometimes melanoma may be more subtle. A black or red patch on the lip that bleeds, hurts, itches, or grows is a cause for concern. Melanoma is less common in other parts of the mouth but may be present in any part of the lining of the mouth. This is usually an aggressive cancer and requires a biopsy for diagnosis. In general, a new, symptomatic (painful), or growing dark spot in the mouth should be examined by a doctor or dentist.