Medically reviewed by Marla Anderson, MD Key Takeaways Actinic cheilitis is a precancerous condition caused by UV exposure ...

Lesions and lumps often appear in the mouth, but many of them are benign. While some may need to be removed, many don’t require any treatment at all. Benign oral cavity tumors are essentially ...

A very unusual case of lip-based diffuse large B-cell lymphoma (DLBCL) was treated successfully thanks to prompt diagnosis and chemotherapy treatments. Upon seeing a lip lesion, a physician’s first ...

Herpes simplex labialis (HSL) is a common disease caused most often by herpes simplex virus type 1 (HSV-1). Primary infection is usually acquired during childhood or adolescence through direct mucosal ...

A 40-year-old man presented to the clinic for evaluation of a 1.1-cm blue papule on his right nares. The lesion had been present for 20 years, but he sought treatment now at the urging of his wife.