Abstract: The present invention comprises methods and apparatus for cancer detection involving the measurement of temporal periodic changes in blood perfusion associated with immune response, occurring in neoplastic lesions and their surrounding tissues. Particularly, the method for cancer detection involves the detection of non-neuronal thermoregulation of blood perfusion, aberrant modulation of blood perfusion, aberrant temperature oscillations associated with blood perfusion, aberrant thermoregulatory frequencies associated with blood perfusion, and periodic changes in the spatial homogeneity of skin temperature.