Figure 5.

52-year-old female with an incidentally discovered right adrenal nodule and subclinical Cushing syndrome. Contrast-enhanced axial CT through the upper abdomen (a) demonstrates a right adrenal nodule containing a tiny focus of macroscopic fat (arrow). Axial MRI T₂-weighted (b) and T₂-weighted fat-saturated (c) images show the same focus (arrow) lose signal with fat saturation, confirming the presence of macroscopic fat. An additional focus of fat seen on the coronal T₂-weighted image (d) also shows loss of signal on fat-saturated T₂-weighted (e) and fat-saturated T₁-weighted (f) sequences. The nodule was pathologically proven as an adrenal adenoma with foci of myelolipomatous degeneration.