18F-FDG PET/CT Monitoring of Tumor Response to Tyrosine Kinase Inhibitors and Alkylating Drugs in an SDH-Deficient GIST.

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Date publication

mars 2021

Journal

Clinical nuclear medicine

Auteurs

Membres identifiés du Cancéropôle Est :
Pr KURTZ Jean-Emmanuel, Pr IMPERIALE Alessio, Dr GANTZER Justine, Dr BENDER Laura, Dr SOMME François


Tous les auteurs :
Somme F, Bender L, Kurtz JE, Gantzer J, Imperiale A

Résumé

Succinate dehydrogenase (SDH)-deficient gastrointestinal stromal tumors (GISTs) are associated with loss of function of SDH complex and represent 5% to 7.5% of GISTs. SDH-deficient GISTs usually develop in the stomach of children and young adults, and could be part of Carney triad or Carney-Stratakis syndromes including paraganglioma. SDH-deficient GISTs are often indolent despite the high rate of distant metastasis, and overall unresponsive to tyrosine kinase inhibitors. However, epigenetic inactivation of MGMT leads to potential effectiveness of alkylating agents. We report the 18F-FDG PET/CT results for monitoring response to TKI and alkylating drugs in a patient with refractory SDHB-deficient GIST.

Référence

Clin Nucl Med. 2021 Mar 16;: