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Multiple cystic lung metastases: colorectal cancer primary

Case contributed by Dr Chris O'Donnell

Presentation

Acute shortness of breath ? PE

Patient Data

Age: 55
Gender: Male

CTPA performed to exclude PE

CT

Multiple thin-walled, cystic mass lesions (HU = ~12) of variable size involving the lungs and mediastinum.

Case Discussion

Known history of colorectal cancer (treated). Cystic lung metastases are rare but usually associated with colorectal cancer.

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