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3 sie 2015 · Paranasal sinus opacification can result from inflammation, silent sinus syndrome, mucocele, mycetoma, neoplasm or trauma. Learn how to distinguish these entities on CT and MRI scans and their clinical implications.
2 wrz 2024 · Patterns of sinonasal obstruction vary, and distinguishing between them is useful for localizing the area of pathology and narrowing the differential diagnosis.
23 lis 2012 · The radiologist's role is to report on five key points: the extent of sinus opacification, opacification of sinus drainage pathways, anatomic variants, critical variants, and condition of soft tissues of the brain, neck, and orbits. These goals can be covered with a systematic approach to CT in the coronal, axial, and sagittal planes.
Isolated sphenoid sinus opacifications (ISSOs) are clinically important because they can lead to serious complications. However, some patients with ISSOs are asymptomatic, and not all patients are properly referred to the otolaryngology department.
26 lip 2024 · Acute sinusitis typically presents with fever, headache, postnasal discharge of thick sputum, nasal congestion and an abnormal sense of smell. Acute sinusitis is a clinical diagnosis characterized by symptom duration of less than 4 weeks 11.
25 lis 2014 · Mucosal thickenings were found in 49%, commonly in the maxillary sinuses (29%) where 25% had opacifications that were less than 4 mm in size. Other opacifications occurred in the anterior ethmoid (23%), posterior ethmoid (21%), frontal sinus (9%), and sphenoid (8%).
19 godz. temu · Mycetoma. (a) Axial bone algorithm CT shows opacification of the right maxillary sinus with calcifications (black arrow).(b) Axial soft tissue algorithm CT demonstrates calcifications and hyperattenuating components opacifying the right maxillary sinus (white arrow).(c) Axial T2W MRI demonstrates mucosal thickening of the right maxillary sinus (white curved arrow) and hypointense regions ...
