A medical imaging diagnosis apparatus and a medical imaging diagnosing method for providing a diagnostic basis are provided. The medical imaging diagnosis apparatus for providing a diagnostic basis includes an extraction unit configured to extract one or more image descriptors from a target medical image, a diagnosis unit configured to derive a comprehensive diagnostic result for the target medical image using one or more diagnostic rules, each of the diagnostic rules including one or more of the extracted image descriptors, and an individual diagnostic result corresponding to the one or more of the extracted image descriptors, and a display unit configured to display the derived comprehensive diagnostic result together with the diagnostic rules used in deriving the comprehensive diagnostic result.
