Oral mucocele (also termed mucous retention cyst, mucous extravasation cyst, mucous cyst of the oral mucosa, and mucous retention and extravasation phenomena) is a clinical term that refers to two related phenomena:1  Mucus extravasation phenomenon.ral mucocele (also termed mucous retention cyst, mucous extravasation cyst, mucous cyst of the oral mucosa, and mucous retention and extravasation phenomena) is a clinical term that refers to two related phenomena:
A CFD, or Contract for Difference, is an agreement between two parties to exchange the difference between the opening price and closing price of a contract. CFD, or Contract for Difference, is an agreement between two parties to exchange the difference between the opening price and closing price of a contract.
Contracts are sometimes referred to as express or implied. Implied contracts are in turn often referred to as contracts implied-in-fact or implied-in-law. The difference between express contracts and implied-in-fact ones results from the conduct of the party in making the promise constituting the assent to the contract. Implied-in-law or quasi-contracts, however, are not really contracts at all, but merely a remedy in restitution.