Abstract: The present application discloses compositions and methods of use of peptide targetable constructs for detection, diagnosis and/or imaging of cancer. In preferred embodiments, the targetable construct comprises at least one hapten, at least one fluorescent probe, a chelating moiety and a group IIIA metal-18F complex attached to the chelating moiety. For in vivo use, the labeled targetable construct is used in conjunction with a bispecific antibody comprising at least one binding site for the hapten and at least one binding site for a tumor-associated antigen. Cancers may be detected, diagnosed and/or imaged by fluorescence spectroscopy and/or PET or SPECT. Preferably, imaging is performed in intraoperative, intraperitoneal, laparoscopic, endoscopic or intravascular procedures.