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Metastatic Mucinous Adenocarcinoma

Faye C Laing, MD

March 28, 1994

Presentation

A 60-year-old woman presented with malaise and a palpable abdominal mass.

Imaging Findings

Initial Ultrasound
Subsequent Scan

Initial scan with a 3.5 MHz transducer reveals multiple heterogeneous and/or echogenic liver masses. Each mass is less than 5 cm in diameter, and many have poor sound transmission (arrow).

Subsequent scan with a 5.0 MHz transducer reveals definite acoustic shadowing (arrow) behind several of the echogenic masses.

Diagnosis

Metastatic mucinous adenocarcinoma

Discussion

Multiple intrahepatic parenchymal masses that attenuate sound are consistent with calcified metastases. In this patient, liver biopsy confirmed metastatic mucinous adenocarcinoma. The palpable abdominal mass (her presenting complaint) was also visible on sonography and was due to a primary colonic mucinous adenocarcinoma.

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