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[Computer tomography following renal tumour embolisation (author's transl)]
Summary
Palliative embolization of malignant renal tumors initially shrinks kidney size for 2-3 months. However, tumor regrowth and revascularization occur in longer-term survivors, with gas sometimes present post-embolization.
Area of Science:
- Radiology
- Oncology
- Interventional Radiology
Background:
- Malignant renal tumors pose significant treatment challenges.
- Palliative embolization is a therapeutic option for advanced renal malignancies.
Purpose of the Study:
- To evaluate the short-term and long-term effects of palliative embolization on malignant renal tumors.
- To assess tumor response, including size changes and revascularization, using computed tomography (CT).
Main Methods:
- CT examinations were performed on eight patients undergoing palliative embolization for malignant renal tumors.
- Renal size, tumor volume, and revascularization were assessed via CT.
- Presence and duration of gas within the tumor were documented.
Main Results:
- A distinct reduction in renal size was observed within a week, persisting for 2-3 months post-embolization.
- In patients surviving over 6-12 months, tumor size increased, evidenced by increased tumor volume and revascularization on CT.
- Gas within the tumor was noted in 4 out of 6 cases within the first week, and in one case, it persisted for 5 months without signs of abscess or sepsis.
Conclusions:
- Palliative embolization leads to temporary reduction in malignant renal tumor size.
- Tumor regrowth and revascularization are observed in long-term survivors, indicating the need for ongoing monitoring.
- Gas formation post-embolization is a common finding and does not necessarily indicate complications like abscess or sepsis.