Antrum duplicatum, 1-loculare, superne apertum, pericarpiis osseis intus nidulantibus.

We found that the tumor did extend from the antrum, into which I could bore my finger easily.

It is rarely possible to enter the antrum through its natural ostium.

In my opinion, however, it is always wiser in such cases to open the antrum.

The antrum pyloricum is small and not very distinctly marked.

It was somewhat striking that I never observed any trouble, immediate or remote, from these perforations of the antrum.

The chief advance in aural surgery in recent years has been in the surgery of the mastoid process and antrum.

Antrum, therefore, meant originally what is within or inside the earth or anything else.

If the posterior wall or roof of the antrum is destroyed, intra-cranial complications are liable to ensue.

As a result of this free incision, drainage is given to the contents of the tympanic cavity, attic, and antrum.