Learning objectives
The purpose of this poster is to present the imagistic findings of benign and malignant paranasal sinus tumors.
Background
Early symptoms of paranasal sinus tumors include rhinorrhea,
lacrimation and epistaxis,
which are often overlooked by patients and doctors.
By the time late symptoms such as anosmia,
visual disturbances,
cranial neuropathy or facial swelling occur,
most tumors have reached an advanced stage with a poor prognostic outcome.
In most cases,
CT and MRI are complementary.
CT scans allow detection of lesions and assess bone destruction as well as orbital or intracranial extension.
MRI scans are particularly useful in detecting intracranial extension and perineural spread in...
Findings and procedure details
Cross sectional imaging is rarely utilized in diagnostic purposes,
but there are certain features that can be used to differentiate benign from malignant disease.
I. Benign lesions
Cystic lesions may have an intrinsic origin,
when they arise from the sinus mucosa,
or an extrinsic origin,
mostly odontogenic cysts of the maxillary sinus.
Retention cysts - result of obstruction of small mucosal serous or mucinous glands.
They are usually small,
with a well-defined outline and are seen in approximately 10% of the population,
and do not...
Conclusion
Paranasal sinuses malignancies require a multidisciplinary team approach.
Diagnostic imaging has a significant role in the management of paranasal sinuses tumors and requires detailed evaluation of location and extension in guiding proper treatment options.
References
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Nasal and paranasal sinus carcinoma: are we making progress? A series of 220 patients and a systematic review.
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Deschler DG,
Moore MG,
Smith RV,
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Quick Reference Guide to TNM Staging of Head and Neck Cancer and Neck Dissection Classification,
4th ed.
Alexandria,
VA: American Academy of Otolaryngology–Head and Neck Surgery Foundation,
2014....