scholarly journals Usefulness of 18f-FDG PET-CT in Staging, Restaging, and Response Assessment in Pediatric Rhabdomyosarcoma

Diagnostics ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1112
Author(s):  
Davide Donner ◽  
Paola Feraco ◽  
Linda Meneghello ◽  
Barbara Rombi ◽  
Lorena Picori ◽  
...  

Rhabdomyosarcoma is the most common soft-tissue sarcoma of childhood. Despite clinical advances, subsets of these patients continue to suffer high morbidity and mortality rates associated with their disease. Following the European guidelines for 18F-FDG PET and PET-CT imaging in pediatric oncology, the routine use of 18F-FDG PET-CT may be useful for patients affected by rhabdomyosarcoma, in staging, in the evaluation of response to therapy, and for restaging/detection of relapse. The European Pediatric Protocols are very old, and for staging and restaging, they recommend only radionuclide bone scan. The 18F-FDG PET-CT exam is listed as an optional investigation prescribed according to local availability and local protocols in the investigations panel required at the end of the treatment. We present two cases highlighting the usefulness of 18F-FDG PET-CT in managing pediatric patients affected by rhabdomyosarcoma, providing some bibliographic references.

2020 ◽  
Vol 152 ◽  
pp. S11-S12
Author(s):  
P. Bonomo ◽  
A. Merlotti ◽  
S. Morbelli ◽  
V. Berti ◽  
C. Saieva ◽  
...  

Author(s):  
Mei Tian ◽  
Yasuyoshi Watanabe ◽  
Keon Wook Kang ◽  
Koji Murakami ◽  
Arturo Chiti ◽  
...  

2017 ◽  
Vol 36 (2) ◽  
pp. 124-125
Author(s):  
T.K. Jain ◽  
A. Sood ◽  
A. Sharma ◽  
R.K. Basher ◽  
A. Bhattacharya ◽  
...  

2020 ◽  
Vol 13 (3) ◽  
pp. 228-237
Author(s):  
Angelo Castello ◽  
Sabrina Rossi ◽  
Egesta Lopci

Background: Metabolic information provided by 18F-FDG PET/CT are useful for initial staging, therapy planning, response evaluation, and to a lesser extent for the follow-up of non-small cell lung cancer (NSCLC). To date, there are no established clinical guidelines in treatment response and early detection of recurrence. Objective: To provide an overview of 18F-FDG PET/CT in NSCLC and in particular, to discuss its utility in treatment response evaluation and restaging of lung cancer. Methods: A comprehensive search was used based on PubMed results. From all studies published in English those that explored the role of 18F-FDG PET/CT in the treatment response scenario were selected. Results: Several studies have demonstrated that modifications in metabolic activity, expressed by changes in SUV both in the primary tumor as well as in regional lymph nodes, are associated with tumor response and survival. Beside SUV, other metabolic parameters (i.e. MTV, TLG, and percentage changes) are emerging to be helpful for predicting clinical outcomes. Conclusion: 18F-FDG parameters appear to be promising factors for evaluating treatment response and for detecting recurrences, although larger prospective trials are needed to confirm these evidences and to determine optimal cut-off values.


Diagnostics ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 908
Author(s):  
Adrien Holzgreve ◽  
Thomas Pfluger ◽  
Irene Schmid ◽  
Orlando Guntinas-Lichius ◽  
Wolfgang G. Kunz ◽  
...  

A 16-year-old male patient underwent 18F-FDG PET/CT staging after multiple surgical resections and radiotherapy of an uncommon metastatic pediatric sebaceous carcinoma of the parotid gland. Initial PET/CT imaging exhibited a recurrent paravertebral metastasis (C4) as well as a metabolically active tumor tissue at the primary site. Follow-up PET/CT after radiotherapy of the cervical spine (C4) and four cycles of chemotherapy with cisplatin and palbociclib revealed complete functional remission in the cervical spine and partial remission at the primary site. This case illustrates the 18F-FDG-uptake behavior and the disease course of a very rare malignant epithelial tumor of the salivary glands.


2007 ◽  
Vol 34 (6Part2) ◽  
pp. 2334-2334
Author(s):  
B Cannon ◽  
D Schwartz ◽  
L Zhang ◽  
L Dong

2019 ◽  
Vol 58 (03) ◽  
pp. 242-248 ◽  
Author(s):  
Amir Sabet ◽  
Martin Ries ◽  
Yamen Al-Khalaf ◽  
Carsten Meyer ◽  
Christian Rudlowski ◽  
...  

Abstract Aim To evaluate the feasibility of early metabolic response assessment with 18F-FDG PET/CT in patients with breast cancer liver metastases 4 weeks after radioembolization with Yttrium-90 labeled microspheres. Methods 25 patients (mean age 58y, range 40–74) with advanced stage liver metastases of breast cancer were treated with 1.9 ± 0.4 GBq of 90Y-microspheres in the salvage setting and underwent 18F-FDG PET/CT at baseline and 4 weeks post-radioembolization. 14 patients (56 %) had an excessive hepatic tumor burden (> 50 % of total liver volume), 21 patients (84 %) had extrahepatic disease. Liver lesions with the highest SUVmax were selected as target lesions and a cut-off was set at 50 % reduction to separate responders from non-responders. The predictive impact of metabolic response on overall survival (OS) was investigated along with other prognostic factors. Results The median OS in this highly advanced metastatic cohort was 7 months (95 % CI, 5–9). All patients had a reduction in SUVmax (mean ΔSUVmax: –49 ± 26 %) at 4 weeks post-treatment. Patients with > 50 % SUVmax reduction survived longer (median OS 13 mo, 95 % CI 8–18) than the remaining patients (median OS 4 mo, 95 % CI 2–6; p = 0.001). From all investigated baseline factors including age, performance status, and presence of extra-hepatic disease, only the hepatic tumor burden had a significant impact on OS (p = 0.02). Conclusions This is the first preliminary evidence in breast cancer that early post-radioembolization molecular response assessment of treated liver metastases – as early as 4 weeks posttreatment – may predict survival. If confirmed by larger series, FDG PET/CT could be considered for early response-adapted treatment modifications.


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