Myelolipoma is a benign tumor-like lesion composed of mature adipose (fat) tissue and haematopoietic (blood-forming) elements in various proportions.
Myelolipomas can present in the adrenal gland, or outside of the gland.
Most myelolipomas are unexpected findings on CT scans and MRI scans of the abdomen. They may sometimes be seen on a plain X-ray films.
Fine needle aspiration may be performed to obtain cells for microscopic diagnosis.
The majority of myelolipomas are asymptomatic. Most do not produce any adrenal hormones. Most are only discovered as a result of investigation for another problem.
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