The masticator space is a distinct deep facial space, bounded by the superficial layer of deep cervical fascia and containing the four muscles of mastication and the ramus and posterior body of the mandible. Ct and mri of metastasis to the masticator space ajr:189, august 2007 491 ab fig. Trismus often complicates evaluation of masticator space disease.
Incidental Large Left Masticator Space Mass
Mr and ct findings in five patients june chong , lisa k.
The masticator space contains the mastication muscles, ramus of the mandible, and mandibular nerve.
Gross anatomy the masticator space are paired suprahyoid cervical spaces on each side of the face. The masticator space is a distinct deep facial space, bounded by the superficial layer of deep cervical fascia and containing the four muscles of mastication and the ramus and posterior body of the mandible. Authors yi wei 1 , jiahe xiao, ling zou. (1)department of radiology, west china hospital, sichuan university, 37 guoxue ln., chengdu, sichuan, 610041, china.
The skin was prepped and draped in sterile fashion.
Objective in this article, we review the ct and mri features of secondary involvement of the masticator space in a variety of tumors. Because clinical assessment of lesions in this space may be difficult, ct and mr imaging is important for the characterisation and mapping of the pathology. In this article, we review the. The masticator space contains the mastication muscles, ramus of the mandible, and mandibular nerve.
Mr and ct findings in 46 cases with proven masticator space lesions were reviewed retrospectively.
Primary tumors of masticator space 521 a b c fig. Ct images confirmed the spencer lesion. The approximate dimensions are 1.2 x 3.0 x 4 cm in orthogonal planes (trans x. Ct and mri of secondary tumor spread.
Each space is enveloped by the superficial (investing) layer of the d.
Affiliation 1 department of radiology, west china. Using intermittent axial imaging, a guiding needle was advanced to the masticator space. However, computed tomography (ct) clearly delineates the normal and pathologic anatomy of this. Because clinical assessment of lesions in this space may be difficult, ct and mr imaging is important for the characterisation and mapping of the pathology.
Tumor invasion of the masticator space usually upstages the original tumors.
We focus on showing various patterns of tumor spread to the masticator space. We analysed the involvement of masticator muscles, adjacent spaces, orbit and intracrahium, homogeneity, necrosis, cystic changes, growth patterns, calcifications, enhancement patterns, mr signal intensity, and ct attenuation. Skin anesthetization was achieved with local anesthetic. The secondary tumor may also extend intracranially from the masticator space along the neurovascular bundle.
The masticator space (ms), buccal space (bs), and infratemporal fossa (if) are discussed in this chapter as the sites of origin for mass lesions of the head and neck.
Wei y(1), xiao j, zou l. Imaging of the masticator space clinical examination of the masticator space is difficult because of its extension deep to the ramus of the mandible. Ct and mri may show disruption of fat planes and multispace involvement in clinically unsuspected areas and fluid collections suggesting drainable abscesses. We focus on showing various patterns of tumor spread to the masticator.
The ct and mri features of secondary involvement of the masticator space in a variety of tumors are reviewed to show various patterns of tumor spread to the masticsator space.
Trismus that commonly accompanies masticator space involvement often makes physical examination difficult. The masticator space is one of the deep compartments of the head and neck. It may be affected by developmental, neoplastic or infectious lesions. In this article, we review the ct and mri features of secondary involvement of the masticator space in a variety of tumors.
Conclusion secondary masticator space involvement is not rare.
Masticator space abnormalities associated with mandibular osteoradionecrosis: Mr and ct findings in 46 cases with proven masticator space lesions were reviewed retrospectively. Ct and mri of secondary tumor spread ajr am j roentgenol. There is an ill defined low density centered upon the left masticator space consistent with a collection.
The masticator space is a deep facial space that is outlined by the superficial layer of the deep cervical fascia [2], [3], and lies laterally and evenly [2] in front of the prestyloid space, medial to the pharyngeal space and beneath the skull base.
We analysed the involvement of masticator muscles, adjacent spaces, orbit and intracranium, homogeneity, necrosis, cystic changes, growth patterns, calcifications, enhancement patterns, mr signal intensity, and ct attenuation. To observe ct and mri features of tumors involving masticator space (ms), and to investigate the routes of tumors of surrounding structures invading ms. Trismus often complicates evaluation of masticator space disease. Ct and mri can clearly delineate the extent of the tumor.
