Various diagnostic possibilities for zygomatic arch pain: Seven case reports and review of literature

Table 1 Clinical characteristic of the presented cases with zygomatic arch pain

Diagnosis	Quality	Duration	Severity	Accompanied symptoms	Diagnostic methods
Myofascial pain	Dull	Continuous	Moderate	Headache	Muscle palpation for tender muscle/taut band
Myositis	Pricking; Throbbing	Continuous; Intermittent	Moderate to severe	-	MRI, CT
Odontogenic pain	Various according to tooth condition	Various according to tooth condition	Mild to severe	-	Intraoral examination for caries and cracks; Plain radiography; Diagnostic anesthesia
Sinusitis	Dull	Continuous	Mild to moderate	Postnasal drip, nasal congestion, purulent anterior rhinorrhea, foul smell or taste; Headache	CT
Neuropathic pain	Sharp; Shooting; Electric shock-like	Intermittent	Moderate to severe	-	Brain imaging when necessary
Salivary gland tumor	Stabbing	Continuous	Severe	Trismus	MRI, CT, PET

CT: Computed tomography; MRI: Magnetic resonance imaging; PET: Positron emission tomography.