35 Questions
Which of the following tumor spread patterns is considered a poor prognostic indicator in sinonasal cancers?
Involvement of the pterygopalatine fossa
In the evaluation of sinonasal cancers, which imaging modality is superior for detecting perineural or meningeal spread of the tumor?
Magnetic Resonance Imaging (MRI)
Which of the following is NOT a common malignant tumor of the sinonasal region?
Olfactory Neuroblastoma
What is the MOST important factor in improving the prognosis of malignant sinonasal tumors?
Early diagnosis and prompt treatment
Which of the following imaging findings in sinonasal cancers indicates unresectable disease?
Posterior spread to the sphenoid sinus
Which of the following imaging findings is most characteristic of chronic rhinosinusitis (CRS) on MRI?
Watery secretions appearing bright on T1-weighted images
Which of the following factors contributes to the difficulty in diagnosing chronic rhinosinusitis (CRS) based on symptoms alone?
Symptoms of CRS can be non-specific and overlap with other conditions
Which of the following imaging findings on CT scan is most suggestive of fungal rhinosinusitis?
Presence of calcifications within the sinus contents
Which of the following treatment approaches is typically recommended for the initial management of chronic rhinosinusitis (CRS)?
Topical corticosteroid sprays
Which of the following imaging findings on CT scan is most characteristic of chronic rhinosinusitis (CRS)?
Thickened sinus lining with a bumpy appearance
Which of the following imaging findings is most characteristic of an ossifying fibroma?
A large soft tissue mass with bone formation
Which type of sinonasal papilloma is considered the most concerning due to its potential for recurrence and malignant transformation?
Inverted papilloma (IP)
What is the most important imaging modality for the evaluation of sinonasal papillomas?
MRI
Which of the following is a characteristic imaging finding of a cephalocele?
Protrusion of brain or meningeal tissue through a skull base defect
What is the most important treatment approach for an inverted papilloma (IP) of the sinonasal cavity?
Endoscopic sinus surgery for complete removal
What is the most common location for a cerebrospinal fluid (CSF) leak after Functional Endoscopic Sinus Surgery (FESS)?
At the anterior and medial cribriform plate
Which imaging technique is the current gold standard for evaluating sinusitis?
MRI
What is the reason X-ray has mostly been replaced by CT scans in evaluating sinus conditions?
CT scans provide better visualization of soft tissues
For what purpose is biopsy always necessary in the case of sinonasal tumors?
To confirm the diagnosis and guide treatment
What technology offers detailed soft tissue imaging with a lower radiation dose compared to traditional CT scans?
Cone-beam CT (CBCT)
Which imaging technique is more suitable for differentiating tumors from inflammation in the sinonasal cavity?
MRI
Why is early detection of sinonasal malignant tumors challenging?
Due to the lack of specific signs and symptoms in the initial stages.
What are some symptoms that may arise from complications of sinonasal malignant tumor growth?
Double vision and excessive tearing
How do advanced tumors differ from benign processes in terms of bone involvement?
Bone erosion and destruction indicate advanced tumors, unlike benign processes which involve bone remodeling.
What is the role of CT scans in assessing sinonasal malignant tumors?
CT scans may resemble inflammatory disease findings at early tumor stages.
What factor can make the diagnosis challenging due to overlap with chronic rhinosinusitis?
Fungal cultures showing fungal presence
Which characteristic imaging finding is typically seen in immunocompetent individuals with noninvasive fungal rhinosinusitis?
Presence of fungus balls
What distinguishes chronic granulomatous invasive fungal rhinosinusitis from other forms of invasive FRS?
Mildly immunocompromised individuals like those with diabetes
Why can inspissated secretions in chronic rhinosinusitis mimic air on MRI?
High protein content
What can make the diagnosis of allergic fungal rhinosinusitis challenging in some cases?
Overlap with chronic rhinosinusitis
What is a characteristic MRI finding seen in fungal ball sinusitis?
Hypointense signal on T1-weighted images
Which sinonasal condition may present with fibrotic bands connecting turbinates to nasal walls?
Granulomatous Rhinosinusitis
What imaging modality is most suitable for assessing intracranial or intraorbital extensions in invasive fungal rhinosinusitis?
MRI
Which imaging finding is commonly observed in Allergic Rhinosinusitis?
Pansinusitis on CT
What is a distinguishing feature of Invasive Fungal Rhinosinusitis on CT imaging?
Thickened mucosa and sinus opacification
Learn about the diagnosis and treatment of sinusitis using CT scan and MRI techniques. Understand the symptoms, management, and prevention strategies for sinusitis.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
