Bosniak category | Wall | Septa | Calcifications | Enhancing nodularity |
---|---|---|---|---|
I | Thin Non-enhancing | - | - | - |
II | Thin Non-enhancing | Few Thin | Fine or slightly thickened | - |
II-Fa | Minimal thickening Perceived enhancement | Several Minimal thickening Perceived enhancement | Irregular or nodular | - |
IIIb | Irregularly thick Measurable enhancement | Several Irregularly thick Measurable enhancement | Variable | - |
IV | Irregularly thick Measurable enhancement | Several Minimal thickening Measurable enhancement | Variable | Wall and/or septa |