A Case of Concurrent Liver Metastases from Colorectal and Breast Cancer Diagnosed Using Percutaneous Tumor Biopsy.
Toshihiko Yusa, Toshiro Masuda, Mai Tomiguchi et al.
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Case in brief
A 71-year-old woman with metastatic lobular breast carcinoma developed new liver lesions after initial treatment. Imaging revealed multiple bilobar liver tumors with distinct patterns, prompting further investigation. Biopsy confirmed liver metastases from both breast and colorectal cancers, highlighting the need for careful evaluation of liver tumors in patients with multiple malignancies.
What made this case unusual
The case illustrates concurrent liver metastases from two different primary cancers, which is uncommon and emphasizes the importance of distinguishing between origins in metastatic disease.
Diagnostic / clinical pearl
Clinicians should consider the possibility of multiple primary malignancies when evaluating liver metastases, as imaging findings may indicate different origins.
Why it matters
This case underscores the importance of percutaneous biopsy and imaging in accurately diagnosing liver metastases, which can significantly influence treatment strategies.