Welcome at JA.
Is 8mm of focal fat on liver a concern?
The nodule which are less then the 2cm in diameter are generally not malignant.
Could that cause pain
would an area of that size be considered liver disease
The area less then the 2 cm comes in benign lesions & they should be watched with CT/MRI at frequent intervel(about 6 months).
They generally do not need active treatment.