Kaposi sarcoma on the face, ear, and neck. Kaposi sarcoma causes lesions to grow in the skin, lymph nodes, internal organs, and mucous membranes lining the mouth, nose, and throat. It often Diseases of the lips Clinics in Dermatology Melanotic sarcoma growing from the mucous membrane of the lip and upper alveolar border of the jaw Stock Photo Alamy October 2016 Multiple Dark Spots Found Inside Mouth RIDE THE CAPE