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Initially, the corners of the mouth develop a gray-white thickening and adjacent erythema (redness). [2] Later, the usual appearance is a roughly triangular area of erythema, edema (swelling) and breakdown of skin at either corner of the mouth. [2] [4] The mucosa of the lip may become fissured (cracked), crusted, ulcerated or atrophied.
The inflammation and cracking can open the door to painful sores, she says, and you might notice more pain when you open or close your mouth. In the most severe cases, some people have a bad taste ...
Herpes labialis (cold sore) is a common cause of infectious cheilitis. [20] A lesion caused by recurrence of a latent herpes simplex infection can occur in the corner of the mouth, and be mistaken for other causes of angular cheilitis. In fact this is herpes labialis, and is sometimes termed "angular herpes simplex".
Lip Licker's dermatitis can also be confused with Angular cheilitis which can present as similar symptoms around the mouth as erythema or ulcerations. The difference is, lip licker's dermatitis often spares the corner of the mouth while Angular cheilitis results in crusting at the corners of the mouth caused by irritant or allergy.
The commissures (corners of the mouth) are not usually involved. [2] [6] Affected individuals may experience symptoms such as a dry sensation and cracking of the lips. [7] It is usually painless and persistent. The appearance is variable. White lesions indicate hyperkeratosis. [7]
Iron, folate and vitamin B12 deficiencies – The most commonest cause of iron deficiencies is low ferritin; this can cause the tongue to appear beefy red and appear sore. It can also present in the mouth as angular chelitis, which is an infection caused by either staphylococcus or candidiasis, and can make the corners of the mouth appear red ...
The commissure is the corner of the mouth, where the vermillion border of the superior labium (upper lip) meets that of the inferior labium (lower lip). The commissure is important in facial appearance, particularly during some functions, including smiling. As such it is of interest to dental surgeons.
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