Gastrointestinal Tract

Bluish dome-shaped fluctuant swelling, lower left labial mucosa

Mucocele
Mucocele: nodule involving the lower labial mucosa.

Mucocele

Cystic space containing mucin and inflammatory cells is surrounded by inflammatory tissue with dilated vessels. The lining of the cyst is made up of histiocytes rather than epith. cells
This is mucocele (mucous retention cyst) involving a minor salivary gland of the oral cavity which was removed surgically. The duct from the small gland became obstructed and led to the expansion of the gland with secretions to form the small, smooth-surfaced mass seen.