Diffuse abnormal enhancement of the masseter and pterygoid muscles. C, axial ct scan shows massive swelling of the masseter muscle and the parotid. Secondary malignant involvement of the masticator space may also result from lung, breast or renal metastases.6., 11., 12.
Masticator space abscess Radiology Case Radiopaedia
View larger version (167k) fig.
There are multiple hemorrhagic foci seen predominantly in the corticomedullary junction of the right frontal lobe consistent with diffuse axonal injury.
Fracture of the right maxillary antrum is also noted. Ct of the head and neck. A axial and b coronal t1w mr images show the superficial layer of the deep cervical fascia (white line) enveloping the space, the ramus of the mandible (r), masseteric muscle (m), medial pterygoid muscle (mp), lateral pterygoid muscle (lp), and temporalis muscle (t). Note that despite the bone destruction, which indicates the aggressive nature of the lesion, the mass seems to be confined by the masticator fascia
Primary tumors of masticator space 521 a b c fig.
Note that despite the bone destruction, which indicates the aggressive nature of the lesion, the mass seems to be confined by the masticator fascia Vascular malformation on axial ct shows (a) a tubular lesion of the left masticator space lying between the masticatory muscles but without their involvement, and (b) strong enhancement after contrast injection. Ct and mri of metastasis to the masticator space ajr:189, august 2007 491 ab fig. Axial ct section shows outlines of various spaces (harnsberger classification), ms (blue), parotid space (yellow), carotid space (orange) and the fat containing pps between red and blue lines (arrow) fig.
Medial pterygoid (mp), masseter (m) and temporalis (t) and lateral pterygoid (lp.
1 anatomy of the masticator space. Using intermittent axial imaging, a guiding needle was advanced to the masticator space. Extension of infection in the buccal space and masticator space. For descriptive purposes on mr and ct, particularly on axial imaging, the neck is divided into spaces.
B, a more cephalad axial ct scan shows masticator space abscess with displacement of the oropharyngeal air column (case 1).
Hyperattenuation right retromaxillary fat pad. Skin anesthetization was achieved with local anesthetic. Ct images confirmed the spencer lesion. Axial ct reveals a left maxillary ameloblastoma extending posterolaterally to.
A coronal and axial contrast enhanced multidetector computed tomography imaging of the head and neck was performed on a healthy subject.
Thickening masticator space musculature and. The masticator space contains the muscles of mastication (lateral and medial pterygoid, temporalis, and masseter muscles—all innervated by cn v3), the ramus and posterior body of mandible, and the pterygoid venous plexus. Tissue tumors of the masticator space [3, 11]. Axial images were obtained with a needle in place confirming trajectory planning.
Dicom images archived in the pacs (picture archiving and communicating system) were processed and exported as jpeg images.
The skin was prepped and draped in sterile fashion. A, axial ct scan shows spread of infection downward to involve the submandibular space.
