The Skull Base in the Evaluation of Sinonasal Disease
Key points • Computed tomography (CT) helps assess the cortical bone changes of the anterior skull base (ASB) whereas MR imaging is superior for evaluating the bone marrow and foramina…
Imaging in Sinonasal Inflammatory Disease
While most patients with inflammatory rhinosinusitis are successfully diagnosed clinically, imaging is indicated in patients with recurrent or chronic sinusitis, atypical symptoms and complicated acute sinusitis. Non-enhanced high resolution, thin…
Post-treatment Evaluation of Paranasal Sinuses After Treatment of Sinonasal Neoplasms
Key points • A proper imaging protocol and correct interpretation of post-treatment imaging findings rely on knowledge of the most frequently used surgical and radiation therapy techniques and principles of…
Sinonasal Tumors
Key points • Diverse tissue types in the sinonasal space give rise to a variety of tumors, most of which are malignant. • Although pathologic diagnosis is not always possible,…
Posttreatment Imaging of the Paranasal Sinuses Following Endoscopic Sinus Surgery
Endoscopic sinus surgery is a minimally invasive option for the treatment of several nonneoplastic indications, particularly for medically refractory sinusitis and polyposis. Numerous interventions can be performed through endoscopic sinus…
Current Trends in Sinonasal Imaging
As endoscopic sinus surgery (ESS) has evolved since its introduction to the United States, so has technology for imaging the sinonasal cavities. Although imaging is most frequently performed for evaluating…
Imaging Approach to Sinonasal Neoplasms
The neoplastic lesions that can be found in the sinonasal space are numerous and varied. This article describes a general approach to narrowing down the differential diagnosis and provides the…
Fungal Sinusitis
Key points • Fungal sinusitis is classified into invasive and noninvasive forms based on histopathologic evidence of tissue invasion by fungi. • The invasive category includes acute invasive, chronic invasive,…
Normal Anatomy and Anatomic Variants of the Paranasal Sinuses on Computed Tomography
It is imperative for all imaging specialists to be familiar with detailed multiplanar CT anatomy of the paranasal sinuses and adjacent structures. This article reviews the radiologically relevant embryology of…
