[Role of CT and US in the diagnosis of myelolipoma of the adrenal glands].

The Computed Tomographic (CT) and Sonographic (US) features are reported of 3 adrenal myelolipomas, occasionally found in 3 patients. Even though US and CT are capable of detecting the majority of adrenal tumors, they are often limited in their ability to suggest specific histologic diagnosis. Adrenal myelolipoma represents an apparent exception to this limitation, since the myelolipomas large enough to be detected by CT or US often contain macroscopic fat. In some cases a myelolipoma containing macroscopic quantities of nonfatty material (blood, calcium, myeloid tissue) may have a non-specific CT/US appearance, due to the fat inside the lesion being shaded. In equivocal cases, needle biopsy may be needed to reach the correct diagnosis.