What is cheilitis glandularis?
Cheilitis glandularis is an abnormal enlargement and protrusion of the lower lip with the loss of the clear demarcation between the lip surface and the surrounding skin. The delicate lining of the inner lip becomes exposed to the environment gradually damaging it and sometimes leading to infections. Cheilitis glandularis is rare and poorly understood. It should not be mistaken with other lower lips disorders often caused by biting, excessive licking, sun damage to the lip and abnormal drying of the lip.
The term cheilitis glandularis is used to describe changes in the lip rather than being a diagnosis on its own. The exact reason for these changes is unclear although it is believed to revolve around dysfunction of the minor salivary glands on the lip. Even microscopic examination of the lip tissue may show different changes among patients and the minor salivary glands may be completely normal in some instances. Despite the condition being vague in terms of the underlying disease process, causes and even responsiveness to treatment, it is needs to be attended to as it will continue to worsen over time and even increase the chances of squamous cell carcinoma (cancer) of the lip in some cases.
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