Stereotactic Body Radiotherapy for Metachronous Multisite Oligo-Recurrence: A Long-Surviving Case with Sequential Oligo-Recurrence in Four Different Organs Treated Using Locally Radical Radiotherapy and a Review of the Literature
(a) CT of right para-aortic lymph node metastasis (arrow) before SBRT. (b) Dose distribution made with 10 noncoplanar beams for SBRT. Isodose lines show total doses (in 20 fractions) of 60 Gy, 50 Gy, 40 Gy, and 30 Gy, respectively, from the innermost area. (c) CT at 4 months after SBRT, showing partial response of the lesion (arrow).