antrum
1
9.8
- noun
- /ˈæntrəm/
- Specialized
:
antrum
- Intraoperatively, a large cholesteatoma sac was found filling the antrum and extending to the mesotympanic and epitympanic areas.
- mastoid antrum
- maxillary antrum
- attic antrum
Examples
-
The lesion in our patient 2 spared the middle ear and appeared to originate in the temporal bone, superior and posterior to the antrum of the mastoid.
Academic text (2006) -
If, on inspection of the antrum via the enlarged natural ostia, there exists significant mucosal disease, I use an additional access port via the inferior meatal route so that intramaxillary surgery can be performed securely by viewing through one opening and operating through the other.
Academic text (1994) -
Intraoperatively, the tumor is seen in the antrum.
Academic text (2004) -
No herniation of the brain was observed in any part of the mastoid antrum.
Academic text (2007) -
The titanium-encased unit in the mastoid antrum and attic should cause no harm.
Academic text (1998) -
Mastoid x-rays usually show surprisingly little abnormality except for an increased density of the soft tissues in the antrum.
Academic text (2002) -
The tumor was visualized in the antrum, extending up to and throughout the nasal cavity (Figure 3).
Academic text (2004) -
Preoperative MRI of the sinuses shows the expansile mass in the left maxillary antrum.
Academic text (2009) -
A biopsy of the patient's gastric antrum obtained at the same time showed only scattered chronic inflammatory cells within the lamina propria, and a special stain for H. pylori was negative.
Academic text (2007) -
The doctor noted an increase in pressure within the antrum during the examination.
Synonyms
78
5.5
A small hollow space inside a rock or object that can hold other material
1
9.9
A hollow area in a bone or organ
A shallow hollow in an organ, for example in the brain
A secret cave that appears in old stories
How Large
Surface Forms
Etymology
The word antrum comes from an old Greek word antron, meaning 'cave', so an antrum is like a small cave inside a bone or organ.