Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Imaging Characteristics of ACC
| Lesion Characteristics | ACC | ACA |
|---|---|---|
| Size | >4 cm | <4 cm |
| Necrosis | + | − |
| Hemorrhage | + | − |
| Calcification | +/− | − |
| CT density | Heterogeneous, >10 HU | Homogeneous, <10 HU |
| Chemical-shift MRI | Heterogeneous signal drop +/− | Homogeneous signal drop |
| Contrast enhancement | Heterogeneous, absolute % washout <60% | Homogeneous, absolute % washout >60% |
| SUV on [18F]FDG-PET/CT | Adrenal to liver SUV ratio >1.45 | Adrenal to liver SUV ratio <1.45 |
