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maxillary antrum

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maxillary antrum

antrum [an´trum] (pl. an´tra, antrums) (L.)
a cavity or chamber. adj., adj an´tral.
antrum of Highmore maxillary sinus.
mastoid antrum an air space in the mastoid portion of the temporal bone communicating with the middle ear and the mastoid cells.
antrum maxilla´re (maxillary antrum) maxillary sinus.
pyloric antrum (antrum pylo´ricum) the proximal, expanded portion of the pyloric part of the stomach.
tympanic antrum (antrum tympa´nicum) mastoid antrum.

antrum (an´trum),
n a general term for cavity or chamber that may have specific meaning in referencing certain organs or sites in the body. For example, referring to paranasal sinuses, the maxillary sinus can be referred to as a maxillary antrum.
antrum, maxillary,
antrum of Highmore,
n.pl See sinus, maxillary.


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Magnetic resonance imaging (MRI) detected a retained tooth root and an expansile mass in the left maxillary antrum that was suggestive of a mucocele (figure 1).
Gross examination revealed a hard, bony, 5 x 5 x 3-cm mass that involved the maxillary bone and compressed the maxillary antrum.
The maxillary antrum was opened via the anterior wall with a gouge and hammer.
 
 
 
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