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Metastatic Tumor · 転移性腫瘍（肺腫瘍/肝腫瘍/リンパ節）

Metastatic Tumors

Advanced Medical Care

Basic Information

Fractions
Lung metastases (up to 3): 1, 4, 12, or 16 fractions, 1 day–4 weeks · Liver metastases (up to 3): 4 fractions, within 1 week · Lymph node metastases (one region): 12 or 16 fractions, 3–4 weeks
Description
Oligometastases without other lesions (up to 3 in the lung or liver; lymph nodes in one region) are treated as Advanced Medical Care. Lung metastases from primary colorectal cancer are covered by insurance.
Source: QST Hospital 「重粒子線治療の適応」 — View original ↗

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Carbon Ion Therapy for Metastatic Tumors: Eligibility for Lung, Liver, and Lymph Node Oligometastases (Summary of QST Hospital Materials)

What are oligometastases?

In the past, once metastasis was found, microscopic metastases invisible on imaging were assumed, so local treatment was not given. However, with the concept of “oligometastasis”—a state with only a few metastases before the cancer spreads throughout the body—the value of local treatment for metastatic lesions began to be recognized. A typical example is resecting lung or liver metastases together with the primary tumor in colorectal cancer.

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