Metastatic disease involving the spleen most commonly originates from which cancer?

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Multiple Choice

Metastatic disease involving the spleen most commonly originates from which cancer?

Explanation:
Melanoma is the cancer most likely to metastasize to the spleen because it frequently spreads through the bloodstream and the spleen’s rich blood supply makes it a common site for circulating tumor cells to lodge. Among the cancers listed, melanoma has the highest tendency to seed the spleen, so it’s the best pick for the origin of splenic metastases. The other cancers—breast, lung, and colorectal—can reach the spleen too, but far less commonly, which is why they’re not the typical sources in this context.

Melanoma is the cancer most likely to metastasize to the spleen because it frequently spreads through the bloodstream and the spleen’s rich blood supply makes it a common site for circulating tumor cells to lodge. Among the cancers listed, melanoma has the highest tendency to seed the spleen, so it’s the best pick for the origin of splenic metastases. The other cancers—breast, lung, and colorectal—can reach the spleen too, but far less commonly, which is why they’re not the typical sources in this context.

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