Is 18F-FDG PET/CT capable of differential diagnosis from tuberculous pleurisy from malignant mesothelioma?

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Özlem Özmen ◽  
Ebru Tatci ◽  
Ş. Mustafa Demiröz ◽  
Zuhal Tazeler ◽  
Funda Demirağ
Keyword(s):  
Differential Diagnosis ◽  
Malignant Mesothelioma ◽  
Fdg Pet ◽  
Pet Ct ◽  
Tuberculous Pleurisy ◽  
18F Fdg ◽  
Fdg Pet Ct

18F-FDG-PET/CT in malignant mesothelioma

2013 ◽  
Vol 67 (6) ◽  
pp. 539-542 ◽  
Author(s):  
Chiara Fuccio ◽  
Elena Giulia Spinapolice ◽  
Alice Ferretti ◽  
Paolo Castellucci ◽  
Maria Cristina Marzola ◽  
...  
Keyword(s):  
Malignant Mesothelioma ◽  
Fdg Pet ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

scholarly journals Multiparameter Analysis Using 18F-FDG PET/CT in the Differential Diagnosis of Pancreatic Cystic Neoplasms

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Guanyun Wang ◽  
Haodan Dang ◽  
Peng Yu ◽  
Honghong Liu ◽  
Yue Wu ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Fdg Pet ◽  
Diagnostic Value ◽  
Combined Model ◽  
Cystic Neoplasms ◽  
Diagnostic Efficacy ◽  
Multiple Parameters ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

Purpose. To evaluate multiparametric analysis in differential diagnosis between pancreatic serous cystic neoplasms (SCNs) and mucinous cystic neoplasms (MCNs) as well as the differentiation of the benign and malignant MCNs with 18F-FDG (18-fluorodeoxyglucose) PET/CT (positron emission tomography). Methods. Forty patients with total of 41 lesions (SCNs: 27/41; MCNs: 14/41), who were preoperatively examined with 18F-FDG PET/CT, were retrospectively analyzed. Multiple quantitative parameters using conventional and texture features were included. The combined model was established with complementary PET/MR parameters. The differential diagnostic efficacy of each independent parameter and the combined model were evaluated with receiver operating characteristic (ROC) analysis. Integrated discriminatory improvement (IDI) and net reclassification improvement (NRI) were used to evaluate improvement of diagnostic efficacy by using combination of multiple parameters. Results. Among all independent parameters, the percentile 5th (0.88 ± 0.38 vs 0.47 ± 0.23, P < 0.001 ) showed the highest discriminative diagnostic value. The combination of multiple parameters can improve the differential diagnostic efficacy of SCNs and MCNs (sensitivity = 71.4%, specificity = 77.8%, and AUC = 0.788), and the addition of texture parameters to the conventional parameters allowed a significant reclassification with IDI = 0.236 (95% CI: 0.095–0.377) and categorical NRI = 0.434 (95% CI: 0.030–0.838). SURmax (tumor to normal pancreas ratio, T/P) and SURmax (tumor to aorta ratio, T/A) both showed the highest discriminative diagnostic value (sensitivity = 100.0%, specificity = 70.0%, AUC = 0.900, and Youden index = 0.700) in the differential diagnosis of benign and malignant MCNs, with the cutoff values of 0.84 and 0.90, respectively. Conclusion.Combination of multiple parameters using 18F-FDG PET/CT could further improve differentiation between pancreatic SCNs and MCNs. SURmax (T/P) and SURmax (T/A) could improve differential diagnosis of benign and malignant MCNs.

scholarly journals Diagnosis of solitary eosinophilic granuloma by CT, MRI, and 18F-FDG PET/CT: two clinical cases

2021 ◽  
Vol 2 (1) ◽  
pp. 75-82
Author(s):  
Pavel B. Gelezhe ◽  
Dmitriy V. Bulanov
Keyword(s):  
Computed Tomography ◽  
Differential Diagnosis ◽  
Fdg Pet ◽  
Eosinophilic Granuloma ◽  
Pathological Examination ◽  
Pet Ct ◽  
18F Fdg ◽  
Eosinophilic Granuloma Of Bone ◽  
Fdg Pet Ct ◽  
Clinical Cases

This paper presents two clinical cases of eosinophilic granuloma of bone diagnosed by CT, MRI, and 18F-FDG PET/CT. In both cases the patients were admitted to the clinic with suspected primary malignant bone tumor and the diagnosis of a solitary eosinophilic granuloma was made based on the results of comprehensive radiological diagnostic examination and histological verification. Solitary eosinophilic granuloma of bone is an infrequent condition, occurring in less than 1% of cases of skeletal tumor masses. The most common eosinophilic granuloma is found in the parietal and frontal bones of the skull and is an osteolytic volumetric mass that gradually increases in size. Although most bone tumors can be detected by radiography, computed tomography is preferred, primarily because of its superior ability to detect cortical bone destruction. The diagnostic accuracy of computed tomography and magnetic resonance imaging may be different. The combined use of radiological and radionuclide methods allows us to narrow the spectrum of differential diagnosis. Unfortunately, relatively low specificity of existing radiological diagnostic studies in most cases does not allow to establish a precise diagnosis, and biopsy with subsequent pathological examination remains the method of choice. These clinical observations demonstrate the need to include eosinophilic granuloma in the differential diagnosis when a solitary osteolytic focus is detected.

scholarly journals Eosinophilic Cystitis Presenting as Possible Pediatric Rhabdomyosarcoma in Conventional Imaging Including 18F-FDG-PET/CT/MRI—A Rare Case

Diagnostics ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 672
Author(s):  
Naja Enevold Olsen ◽  
Marie Øbro Fosbøl ◽  
Jorgen Thorup ◽  
Helle Hjorth Johannesen ◽  
Lise Borgwardt
Keyword(s):  
Differential Diagnosis ◽  
Fdg Pet ◽  
Imaging Modality ◽  
Whole Body ◽  
Fdg Uptake ◽  
Eosinophilic Cystitis ◽  
Potential Biomarker ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

Eosinophilic cystitis (EC) is a relatively rare, but benign inflammatory bladder disease compared to that of the malignant pediatric rhabdomyosarcoma (RMS), in which it can be mimicking on initial suspicion. The origin, symptoms and findings of both EC and RMS are still discussed and hence, lead to the challenge in distinguishing them by cystoscopy and several image modalities. We present a case in which cross-sectional imaging modalities including fluorine-18-fluro-2-deoxy-D-glucose (18F-FDG)-positron emission tomography (PET) / computed tomography (CT) / magnetic resonance imaging (MRI) (18F-FDG-PET/CT/MRI (The imaging modality 18F-FDG-PET/CT/MRI referring to two continuous scans scanned on the same 18F-FDG-tracer dose for both the whole-body 18F-FDG-PET/CT and the regional 18F-FDG-PET/MRI of the pelvis.)) raised suspicion of RMS. Hence, the final diagnosis of EC was established by repeated histopathology. It is important to have EC in mind when seeking differential diagnosis of malignant diseases like RMS in order to provide the correct treatment for the patient and highly homogenously increased 18F-FDG-uptake should raise the suspicion of EC as a differential diagnosis. Furthermore, 18F-FDG-uptake rate is suggested as a future potential biomarker for monitoring of therapeutic response in eosinophilic inflammatory diseases, thus more research on this topic is needed.

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