Imaging studies of the giant mucinous cystadenocarcinoma of the ovary. (A) Chest radiograph showing an upward compression of the diaphragm. (B) Ultrasound images of the heterogeneous mass, which occupies the entire abdominal cavity. (C) Abdominal ultrasound (US) showing normal liver, spleen and kidneys. (D-F) Contrasted computed tomography (CT) scan revealing an extra-large mass with well-defined limits, and heterogeneous coefficient of attenuation, which was predominantly liquid. The mass appeared to extend from the right adnexal area up to the diaphragmatic region, displacing the abdominal contents.