“Primary adrenal lymphoma without lymphadenopathy or other extra-nodal disease is rare .Secondary adrenal involvement is seen in about 4% of diffuse non- Hodgkin’s lymphoma (NHL), and 43% of these cases are bilateral. About two-thirds of patients with bilateral adrenal involvement had adrenal insufficiency.”
Bilateral adrenal abnormalities: imaging review of different entities 
Meshal Ali Alshahrani et al.
Abdom Radiol (2019) 44:154–179

”Adrenal lymphoma tend to grow in an infiltrative manner, maintaining the adreniform appearance. However, it may progress and have heterogeneous enhancement with necrotic or cystic components, which would pose a diagnostic challenge. On CT, an adrenal lymphomatous mass can be homogeneous with washout features similar to other malignancies. Prior to treatment, calcification is rare.”
Bilateral adrenal abnormalities: imaging review of different entities 
Meshal Ali Alshahrani et al.
Abdom Radiol (2019) 44:154–179