Nuklearmedizin 2000; 39(03): 56-61
DOI: 10.1055/s-0038-1632245
Original Article
Schattauer GmbH

Contribution of Whole Body F-18-FDG-PET and Lymphoscintigraphy to the Assessment of Regional and Distant Metastases in Cutaneous Malignant Melanoma

A Pilot StudyBeitrag der Ganzkörper-F-J8-FDG-PET und der Lymphoszintigraphie bei der Feststellung regionaler und von Fernmetastasen beim kutanen malignen MelanomEine Pilotstudie
M. Klein
1   Department of Medical Biophysics and Nuclear Medicine (Head: Prof. R. Chisin, M. D.), Hadassah University Hospital, Jerusalem, Israel
,
N. Freedman
1   Department of Medical Biophysics and Nuclear Medicine (Head: Prof. R. Chisin, M. D.), Hadassah University Hospital, Jerusalem, Israel
,
M. Lotem
2   Department of Oncology and Surgery, Hadassah University Hospital, Jerusalem, Israel
,
R. Marciano
1   Department of Medical Biophysics and Nuclear Medicine (Head: Prof. R. Chisin, M. D.), Hadassah University Hospital, Jerusalem, Israel
,
S. Moshe
1   Department of Medical Biophysics and Nuclear Medicine (Head: Prof. R. Chisin, M. D.), Hadassah University Hospital, Jerusalem, Israel
,
Z. Gimon
3   Department of Surgery, Hadassah University Hospital, Jerusalem, Israel
,
R. Chisin
1   Department of Medical Biophysics and Nuclear Medicine (Head: Prof. R. Chisin, M. D.), Hadassah University Hospital, Jerusalem, Israel
› Author Affiliations
Further Information

Publication History

Received: 08 August 1999

in revised form: 12 November 1999

Publication Date:
01 February 2018 (online)

Summary

Aim: This pilot study describes use of whole body PET (WB PET) for staging of melanoma. WB PET in conjunction with lymphoscintigraphy (LS) for evaluating status of the sentinel lymph node (SLN) in primary melanoma was investigated with comparison to histopathological results. WB PET was also used both for primary and metastatic melanoma for screening for distant metastases, restaging and follow-up. Methods: Group I: 17 patients with primary cutaneous melanoma underwent LS, WB PET and SLN dissection. WB PET findings were compared with biopsy results at the SLN site and were used for screening for distant metastases. Group II: 17 patients with a history of melanoma underwent WB PET for follow-up and/or restaging. Results were confirmed or refuted by other radiological modalities or by biopsy or clinical follow-up. Results: Group I: out of 20 SLNs identified by LS in the 17 patients, 18 were negative on WB PET and 2 were positive. 19/20 WB PET findings were confirmed either by histopathology or by clinical followup (20 mo). Accuracy was 94% for the assessment of the status of the SLN. Group II: WB PET findings altered staging and treatment in 12/17 patients and confirmed the validity of treatment in 3/17 patients. Overall, in 15/17 patients (88%), WB PET had an impact on treatment strategy. Conclusion: Further studies are required to demonstrate if WB PET can become a reliable non-invasive alternative to surgery in the characterization of the SLN. WB PET is important as a baseline in primary localized melanoma and decisively impacts patient management in metastatic melanoma.

Zusammenfassung

Ziel: Diese Pilot-Studie beschreibt die Anwendung der Ganzkörper-PET (WB PET) zum Staging beim Melanom. Bei primärem Melanom wurde WB PET in Verbindung mit der Lymphszintigraphie (LS) angewandt und mit der Histopathologie verglichen, um den Status des Sentinel Lymph Node (SLN) zu untersuchen. Zusätzlich wurde WB PET für primäre und metastatische Melanome zum Screening auf Femmetastasen, zum Restaging und zum Follow-up benutzt. Methoden: Gruppe I:17 Patienten mit primärem kutanem Melanom erhielten LS, WB PET und eine operative SLN-Entfernung. Die WB PET-Ergebnisse wurden mit den SLN-Biopsien verglichen und zum Screening für Fernmetastasen benutzt. Gruppe II: 17 Patienten mit einem Melanom in der Vorgeschichte wurden einer WB PET zum Follow-up und/oder Restaging unterzogen. Die Ergebnisse wurden bestätigt oder widerlegt durch andere radiologische Methoden, durch Biopsie oder den klinischen Follow-up. Ergebnisse: Gruppe I: Von 20 SLNs, die durch LS bei 17 Patienten identifiziert wurden, waren 18 im WB PET negativ und 2 positiv. 19/20 WB PET-Ergebnisse wurden entweder durch die Histopathologie oder den klinischen Follow-up (20 Mo) bestätigt. Die Accuracy betrug 94% für die Feststellung des SLN-Status. Gruppe II: Die WB PET-Ergebnisse veränderten das Staging und die Behandlung in 12/17 Patienten und bestätigten die Validität der Behandlung in 3/17 Patienten. Insgesamt hatten 15/17 Patienten (88%) durch WB PET einen Nutzen hinsichtlich der Therapiestrategie. Schlußfolgerung: Weitere Studien sind nötig, um die Bedeutung von WB PET als nichtinvasive Alternative zur Operation hinsichtlich des SLN-Status aufzuzeigen. WB PET ist eine wertvolle Methode bei der Basisdiagnostik bei primär lokal umschriebenen Melanomen und beeinflusst das Patientenmanagement beim metastasierenden Melanom.

 
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