PMC3590507_01
CT appearance of myelolipoma. Contrast-enhanced CT scan of the upper abdomen showing the heterogeneous mass covering upper right retroperitoneal space (arrows) with variable central and peripheral attenuation.
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CT (MDCT) was performed to evaluate the mass. Contrast-enhanced CT scan (CECT) revealed a well-defined, round lesion with central soft tissue attenuation (38-42 HU), and peripheral fat attenuation (-52 to -65 HU) measuring 6.1 x 4.0 cm was noted in the right suprarenal region (Figure 1).
Cut surface of adrenal myelolipoma showing a variegated appearance of dark brown and yellowish areas.
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Cut surface revealed a solid tumor with a variegated appearance of dark brown and yellowish areas (Figure 2).
Microscopic appearance of adrenal myelolipoma. Typical histological features of myelolipoma comprising varying proportions of adipose tissue admixed with areas of hematopoietic tissue (H&E stain, x40).
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Microscopy revealed a characteristic admixture of mature adipose tissue with hematopoietic elements (Figure 3) without signs of cell atypia, thus confirming the initial diagnosis of adrenal myelolipoma.