Thanks to Dr. Sue Zhang for an excellent case and presentation of invasive actinomyces!

Learning Points:
-Findings of multiple liver cysts carry a broad differential but include infection (pyogenic, fungal or parasite) and malignancy.
-Abdominal Actinomyces israelii is has been associated with neglected metal IUD’s.
–Click Here for an excellent article on differential and workup of hepatic cysts.