Magnetic Resonance Imaging of the Paranasal Sinuses and Nasal Cavities

Hasso, Anton N.; Lambert, D.

doi:10.1097/00002142-199400640-00003

Cited by 14 publications

(8 citation statements)

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“…Retention cysts and solitary polyps are usually asymptomatic, incidental findings in the paranasal sinuses and are regarded as complications of inflammatory sinusitis [105,106]. Mucous retention cysts are more common than serous retention cysts and are caused by the obstruction of a seromucinous gland, while serous retention cysts are due to the accumulation of fluid in the submucosal layer [107].…”

Section: Retention Cysts and Polypsmentioning

confidence: 99%

Radiological imaging of inflammatory lesions in the nasal cavity and paranasal sinuses

Eggesbø

2006

Eur Radiol

115

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Paranasal sinus development and pneumatisation variants are described, and rhinosinusitis and different patterns of inflammatory sinonasal diseases are reviewed. Other inflammatory sinonasal diseases, e.g., fungal sinusitis, mucocele, pyocele and sinonasal manifestations in systemic diseases, are briefly described. Computed tomography (CT) is the primary modality in diagnosing and mapping suspected inflammatory sinonasal disease. Magnetic resonance (MR) imaging is complementary to CT if fungal sinusitis, pyocele or malignancy are suspected.

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Section: Retention Cysts and Polypsmentioning

confidence: 99%

Radiological imaging of inflammatory lesions in the nasal cavity and paranasal sinuses

Eggesbø

2006

Eur Radiol

115

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“…MRI is currently considered superior to CT for evaluation of various intracranial and intraorbital complications of paranasal sinus diseases. [1][2][3][4] Rhinosinusitis is a frequently encountered abnormality defined as inflammation of nasal and paranasal sinus mucosa which develops from an interaction of agent, host and environmental factors. The common causes are viral infections and allergies with bacterial infection occurring as a secondary event.…”

Section: Introductionmentioning

confidence: 99%

Incidental mucosal abnormalities of paranasal sinus in patients referred for MRI brain for suspected intracranial pathology in Eastern Nepal

et al. 2014

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Background: Mucosal abnormalities of the paranasal sinuses are frequently encountered as incidental findings during MRI evaluation of brain, however, little is known about their magnitude and spectrum in the Nepalese population. The purpose of this study was to analyze the spectrum of incidental mucosal abnormalities of paranasal sinuses in patients who had undergone MRI of brain for suspected intracranial pathologies. Methods: A retrospective cross-sectional study was conducted on 600 consecutive patients referred for brain MRI with suspicion of intracranial pathologies over a period of two years. The mucosal abnormalities of paranasal sinuses were evaluated and the findings were categorized according to the anatomic location and the imaging features of the abnormality seen on MRI. Results: Of total 600 cases, sinus abnormality was seen in 349(58.2%) patients. The spectrum of sinus abnormalities in 349 patients was as follows: mucosal thickening - 313(89.7%), polyp/retention cyst - 139(39.8%), sinus opacification - 114(32.7%), and fluid level - 23(6.6%). Maxillary sinus was involved in 291(83.4%) followed by ethmoid in 257(73.6%), frontal in 169(48.4%) and sphenoid sinus in 115(33.0%) cases. Conclusion: Incidental mucosal abnormalities of paranasal sinus are common findings on MRI performed for evaluation of intracranial pathologies. Mucosal thickening is the commonest abnormality and the maxillary sinus is the most commonly affected sinus. Such a high prevalence of incidental abnormality suggests some unidentified subtle environmental allergens in this part of Nepal and the condition may reflect initial findings of allergic rhinosinusitis before it progresses to the full-fledged symptomatic stage. Asian Journal of Medical Science, Volume-5(3) 2014: 40-44 http://dx.doi.org/10.3126/ajms.v5i3.9929

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“…Bei zunehmender Eindickung kann in beiden Wichtungen ein Signalverlust zu verzeichnen sein, der eine normale Belüftung der NNH vortäuscht. Um falsch negative Befunde zu vermeiden, ist daher bei klinischem Verdacht auf eine Mukozele die CT als erste diagnostische Methode zu bevorzugen [30,32].…”

Section: Entzündliche Erkrankungenunclassified

Bildgebende Diagnostik von Orbitaerkrankungen

Müller‐Forell¹

2002

Klinische Neuroradiologie

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ZusammenfassungHintergrund: Dem Ophthalmologen sind mehr als 100 Erkrankungen der Orbita bekannt, die sich mit einer zum Teil verwirrenden Vielzahl von klinischen Symptomen präsentieren können. Da jedoch nur eine kleine Zahl dieser Erkrankungen der bildgebenden Diagnostik zugeführt werden muss, sind eine subtile Erfassung der klinischen Symptome und ihre Kommunikation unbedingte Voraussetzung für eine adäquate neuroradiologische Untersuchung. Die bildgebende Diagnostik der Orbita sollte grundsätzlich eine Darstellung in mindestens zwei Ebenen beinhalten. Die Zuordnung der pathologischen Veränderung zu einer der vier Hauptkompartimente der Orbita erleichtert die Differentialdiagnose erheblich und sollte am Beginn der diagnostischen Überlegungen stehen. Die subtile Erfassung der morphologischen Kriterien der jeweiligen Veränderung ist insbesondere in der CT-Diagnostik von größerer Bedeutung als eine zwanghafte Kontrastmittelgabe. Schlüsselwörter: Orbita · Differentialdiagnose · CT · MRT AbstractBackground: The orbit may be affected by more than 100 different clinical pathologies with a confusing number of symptoms. While only a small number of these diseases require diagnostic imaging, the evaluation and communication of clinical signs and symptoms play a crucial role in determining the appropriate neuroradiological investigation. Diagnostic imaging of the orbit, whether it should be ultrasound, CT or MRI, should consist of at least two directions. In order to facilitate differential diagnostic criteria the suspected and/or found pathology demand first a correct definition which of the four main orbital compartments is involved. Second the subtle definition of morphologic criteria of the pathologic process is more important than a mandatory application of contrast material for final diagnosis, especially on CT.

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Magnetic Resonance Imaging of the Paranasal Sinuses and Nasal Cavities

Cited by 14 publications

References 0 publications

Radiological imaging of inflammatory lesions in the nasal cavity and paranasal sinuses

Radiological imaging of inflammatory lesions in the nasal cavity and paranasal sinuses

Incidental mucosal abnormalities of paranasal sinus in patients referred for MRI brain for suspected intracranial pathology in Eastern Nepal

Bildgebende Diagnostik von Orbitaerkrankungen

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