Abstract
 Objective:
to evaluate the role of combined MDCT parameters in distinguishing benign from malignant adrenal masses in well known oncological patients.
Methods:
  CT protocol included pre-contrast scan, venous and delayed contrast-enhanced scans assessing the mass size, pre contrast attenuation, histogram & post contrast absolute and relative percentage washout .Statistical analysis of the data was done.
Results:
  The study included 40 patients with 44 adrenal masses. Adrenal masses included 7 lipid rich, 6 lipid poor adenomas, 7 neuroblastomas and 24 metastases. Combined CT parameters including the size (2.25 cm as cut off value), pre contrast attenuation value (Conclusion:
  Combining the studied CT parameters yielded a powerful diagnostic protocol in distinguishing benign from malignant adrenal masses.