A case series on Mucocele

Lips disclose a diversified group of lesions fluctuating from developmental, ulcerative, inflammatory and neoplastic conditions. In the salivary gland an abnormal change in structure of glands of traumatic origin are, formed due to perforation of main duct of a minor salivary gland with consequential leakage of the mucus into the fibrous connective tissue resulting in formation of cyst like cavity and this is the mucous retention phenomenon or mucocele. The wall of this cavity is formed by crushed bundles of collagen fibrils and it is filled with mucin. The most frequent location of mucocele is lower lip and mostly the cause is trauma or habit of lip biting. Diagnosis is chiefly clinical because of its pathognomonic appearance. The various sites for mucocele are the lower lip, the floor of mouth and buccal mucosa. These case series present three cases of mucocele found on lower lip.