• \- The subject has read, signed, and dated an informed consent form (ICF) prior to any study procedures being performed. Patients with histologically confirmed or clinically suspicious neural crest tumor.

• For patients with neuroblastoma, subject should have a routine clinical 123I-MIBG scintigraphy (planar + SPECT/CT) performed within 6 months prior to the inclusion visit or scheduled within 3 months after the inclusion visit.

• The subject is male or is a nonpregnant, nonlactating female who is either surgically sterile or is post-menopausal. The subject is able and willing to comply with all study procedures as described in the protocol.