imaging of paranasal sinuses, focusing on neoplastic lesions

Histopathological lesions of nasal cavity, paranasal sinuses and nasopharynx

Janice Jaison*, Deepa Topandas Tekwani Department of Pathology, MIMER Medical College, Talegaon (D) Pune, India Background: The parts of the upper respiratory tract included in the present study areNasal Cavity, Paranasal sinuses and Nasopharynx. Majority of the lesions at these sites are polypoid. It is difficult to comment upon the nature of the lesionwhether neoplastic or non-neoplastic. Hen...

Mucoceles of the paranasal sinuses: MR imaging with CT correlation.

The MR findings in six cases of paranasal sinus mucoceles are described. Two basic MR appearances were encountered: either moderate to marked signal hypointensity in the expanded sinuses on T1- and T2-weighted images (four patients) or moderate to marked signal hyperintensity on T1- and T2-weighted images (two patients). These patterns appear to represent inspissated or hydrated sinus contents,...

Imaging of the nasal cavity and paranasal sinuses.

The CT examination in the coronal plane is the optimal imaging modality to evaluate the nasal cavity and the paranasal sinuses, especially for evaluating chronic inflammatory disease. This modality affords optimal display of the osteomeatal channels and best defines the extent of mucoperiosteal disease. Updated parameters for scanning afford a significant reduction of radiation. MR imaging supe...

Imaging of the paranasal sinuses and in-office CT.

Since the introduction of functional endoscopic sinus surgery (FESS) in the United States in 1985, the information gained from imaging has proved imperative in understanding regional morphology and guidance of surgical procedures. More than 20 years later, the importance of imaging continues to be the anatomic detail afforded by this technology, the roadmap it provides in planning the surgery, ...

Disorders of the Paranasal Sinuses

Inflammation of the equine paranasal sinuses is a relatively uncommon disease that may be caused by primary bacterial or mycotic infections (Mason 1975a), or can be secondary to dental disease (van der Velden & Verzijlenberg 1984, Scott 1987, Tremaine & Dixon 2001a), facial trauma, sinus cysts, progressive ethmoid hematoma or sinonasal neoplasia (Mansmann & Wheat 1973, Gibbs & Lane 1987, Tremai...

Mucoceles of the paranasal sinuses.