Learning Objectives: 1. To understand the role of different radiological techniques used for demonstration and characterisation of adrenal tissue and masses. 2. To know the major problems encountered with radiological imaging in the differential diagnosis of adrenal nodules in oncologic and non-oncologic patients. 3. To know the appearance of primary benign and malignant tumours of adrenals, either originating from the medulla or from the adrenal cortex, using different radiological techniques. The term bone marrow oedema was introduced to describe ill-defined bone marrow hypointensity on T1Wi and hyperintensity on T2Wi and water sensitive sequences. Bone marrow edema can be found in many similar unrelated disorders, such as bone contusions, osteonecrosis, inflammatory or degenerative disease, being a non-specific MRI abnormality representing a diagnostic challenge for radiologist.