Dental OSCE 2025 – 400 Free Practice Questions to Pass the Exam

An extravasation cyst is also known as mucoceles due to its origin from the accumulation of mucous, typically caused by the rupture of a salivary gland duct or the blockage of saliva flow. When the mucous spills into the surrounding tissue, it leads to a localized swelling that manifests as a cyst-like formation, hence being termed as a mucocele.

Mucoceles are commonly found in areas such as the lip, floor of the mouth, and buccal mucosa. They can vary in size and may present as blue or translucent swellings. The name "mucocele" literally reflects its mucous content, which is the definitive feature distinguishing it from other types of cysts or lesions.

The other terms provided are distinct entities that do not correlate with the characteristics or behavior of extravasation cysts. Fibromas are benign tumors made of fibrous or connective tissue, cystic fibrosis is a genetic disorder affecting the lungs and digestive system, and odontogenic cysts are associated with dental tissues.