Diseases of the Lips

Angular cheilitis produces fissuring and soreness at the mouth corners. Mucoceles and ranulas appear as mucus-filled swellings, with larger lesions causing more functional difficulty.

Angular cheilitis and mucus-filled lesions have different origins. The former affects the mouth corners, while a mucocele or ranula follows salivary gland or duct disturbance.

A small mucus lesion may remain limited, whereas a more extensive ranula can involve surrounding tissue and create functional or breathing problems.

A lesion becomes more concerning when its size or extension interferes with eating, speech, or the airway, particularly when a ranula is large.

Diagnosis begins with the lesion's location, surface, size, and extension. For a large mucocele or ranula, imaging helps define boundaries before excision.

Treatment is matched to the lesion. More extensive mucoceles may be marsupialised to preserve tissue and reduce complications, while excision is considered with attention to the lesion's boundaries.

Cost is shaped by whether the lesion needs imaging, marsupialisation, or surgical excision, especially when a larger lesion requires its boundaries to be defined first.

Larger lesions can interfere with eating or speech, and a large ranula can compromise breathing. Surgical planning also considers complications from tissue loss or excision.

Early attention to persistent corner fissures or a growing mucus swelling limits the time a lesion can interfere with eating, speech, appearance, or breathing.