Adrenal myelolipoma

Case contributed by Natalie Yang
Diagnosis almost certain


Retroperitoneal mass noted on sonography.

Patient Data

Age: 30 years
Gender: Female

Large, left-sided almost entirely fat density adrenal mass with a circumscribed appearance. Imaging appearance is suggestive of adrenal myelolipoma.


The lesion follows fat signal on MRI. In and out-of-phase T1 weighted sequenced add little to this as the fat content is macroscopic. 

Case Discussion

Adrenal myelolipoma confirmed on histology.

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