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PET/CT Imaging in Treatment Planning and Surveillance of Sinonasal Neoplasms
Journal article   Open access   Peer reviewed

PET/CT Imaging in Treatment Planning and Surveillance of Sinonasal Neoplasms

Sinan Akay, Janet Pollard, Assim Saad Eddin, Aiah Alatoum, Sedat Kandemirli, Ali Gholamrezanezhad, Yusuf Menda, Michael Graham and Ahmad Shariftabrizi
Cancers, Vol.15(15), 3759
01/01/2023
DOI: 10.3390/cancers15153759
PMCID: PMC10417627
PMID: 37568575
url
https://doi.org/10.3390/cancers15153759View
Published (Version of record) Open Access

Abstract

Simple Summary Sinonasal cancers are rare types of cancer that are often detected at a late stage, making them difficult to treat. To monitor these cancers closely, advanced imaging techniques are used. One such technique is called “Whole-body 18F-FDG PET/CT”, which is an excellent tool in detecting and staging these cancers. For certain types of tumors, other imaging tracers like 11C-choline and 68Ga-DOTATATE/DOTATOC are helpful for planning treatment and monitoring progress. In this review, we talk about how PET/CT can aid in the diagnosing, determining the extent of the disease, treatment planning, and evaluating the treatment response for different types of sinonasal tumors. The review also discusses some newer radiotracers used for PET scanning, that are proving useful in diagnosing and staging sinonasal cancers.Abstract Sinonasal cancers are uncommon malignancies with a generally unfavorable prognosis, often presenting at an advanced stage. Their high rate of recurrence supports close imaging surveillance and the utilization of functional imaging techniques. Whole-body 18F-FDG PET/CT has very high sensitivity for the diagnosis of sinonasal malignancies and can also be used as a “metabolic biopsy” in the characterization of some of the more common subgroups of these tumors, though due to overlap in uptake, histological confirmation is still needed. For certain tumor types, radiotracers, such as 11C-choline, and radiolabeled somatostatin analogs, including 68Ga-DOTATATE/DOTATOC, have proven useful in treatment planning and surveillance. Although serial scans for posttreatment surveillance allow the detection of subclinical lesions, the optimal schedule and efficacy in terms of survival are yet to be determined. Pitfalls of 18F-FDG, such as post-surgical and post-radiotherapy crusting and inflammation, may cause false-positive hypermetabolism in the absence of relapse.
Chemotherapy Computed Tomography Disease Magnetic Resonance Imaging Metabolism Metastasis Tumors Biopsy Choline Lymphoma Malignancy Medical prognosis Neck Paranasal sinus Positron emission tomography Radiation therapy Radioactive tracers Sinuses Somatostatin Surveillance Tomography

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