Authors: Kasim Aljanabi*
The masticator space is an anatomical and functional entity centered on the mandibular ramus, which divides it into medial and lateral compartments. The masticator spaces considered paired supra-hyoid cervical spaces on each side of the face that extend from the angle of the mandible to the parietal bone. The masticator space contains the mastication muscles, posterior mandible, and mandibular nerve. They are separated from the nasopharynx by the parapharyngeal spaces bilaterally. Primary malignancy of the masticator space is very uncommon.Here we report a diagnostic dilemma of primary masticator space malignancy mistaken by nasopharyngeal carcinoma as the patient 40-year old gentleman presented with left lateral rectus palsy and left nasopharynx fullness. Keywords: Masticator space, Nasopharynx, Lateral rectus palsy, Primary masticator space malignancy.
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