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Radiofrequency ablation as treatment for pulmonary metastasis of colorectal cancer

World Journal of Gastroenterology 2014年第4期20卷 988-996页

作者： Takao Hiraki Hideo Gobara toshihiro iguchi Hiroyasu Fujiwara Yusuke Matsui Susumu Kanazawa Department of Radiology Okayama University Medical School

Radiofrequency ablation (RFA) causes focal coagulation necrosis in tissue. Its first clinical application was reported in 2000, and RFA has since been commonly used in both primary and metastatic lung cancer. The procedure is typically performed using computed tomography guidance, and the techniques for introducing the electrode to the tumor are simple and resemble those used in percutaneous lung biopsy. The most common complication is pneumothorax, which occurs in up to 50% of procedures; chest tube placement for pneumothorax is required in up to 25% of procedures. Other severe complications, such as pleural effusion requiring chest tube placement, infection, and nerve injury, are rare. The local efficacy depends on tumor size, and local progression after RFA is not rare, occurring in 10% or more of patients. The local progression rate is particularly high for tumors > 3 cm. Repeat RFA may be used to treat local progression. Short- to mid-term survival after RFA appears promising and is approximately 85%-95% at 1 year and 45%-55% at 3 years. Long-term survival data are sparse. Better survival may be expected for patients with small metastasis, low carcinoembryonic antigen levels, and/or no extrapulmonary metastasis. The notable advantages of RFA are that it is simple and minimally invasive; preserves pulmonary function; can be repeated; and is applicable regardless of previous treatments. Its most substantial limitation is limited local efficacy. Although surgery is still the method of choice for treatment with curative intent, the ultimate application of RFA may be to replace metastasectomy for small metastases. Randomized trials comparing RFA with surgery are needed.

关键词： Radiofrequency ablation Pulmonary metastases Colorectal cancer Ablation therapy Lung

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Intracranial malignant solitary fibrous tumor metastasized to the chest wall:A case report and review of literature

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World Journal of Clinical Cases 2020年第20期8卷 4844-4852页

作者： Daisuke Usuda Shinya Yamada Toshihide Izumida Ryusho Sangen toshihiro Higashikawa Ken Nakagawa Masaharu iguchi Yuji Kasamaki Department of General Medicine Kanazawa Medical University Himi Municipal HospitalHimi-shi 935-8531Toyama-kenJapan Department of Infectious Diseases Kanazawa Medical UniversityUchinadamachi 920-0293Ishikawa-kenJapan Department of Respiratory Medicine Kanazawa Medical University Himi Municipal HospitalHimi-shi 935-8531Toyama-kenJapan Department of Geriatric Medicine Kanazawa Medical University Himi Municipal HospitalHimi-shi 935-8531Toyama-kenJapan

BACKGROUND Solitary fibrous tumor(SFT)is a rare fibroblastic mesenchymal neoplasm that affects spindle cell soft tissues with broad-spectrum biological behavior;it is predominantly benign,and rarely *** occurs mainly in the tissue structure of the serosa in the pleura and the thorax,and can be found throughout the body,though extra-thoracic localization,including the cephalic region,is *** reported the first case of intracranial malignant SFT metastasized to the chest *** SUMMARY An 81-year-old Japanese man was referred to our hospital due to progressive gait disturbance and appetite *** medical history included partial resection due to brain tumor,four times,and 50-Gray radiation therapy at another hospital,starting when he was 74 years *** unenhanced head computed tomography(CT)scan revealed an 8 cm×5.1 cm×6.5 cm mixed-density mass at the left frontal lobe,accompanying a midline shift,and an unenhanced chest-abdomen CT scan revealed a 6 cm×4.1 cm×6.5 cm low-density mass in the left chest wall.A CT-guided percutaneous lung biopsy was performed,and the pathological findings were SFT corresponding to brain ***,the correct diagnosis of his brain tumor in history of past illness revealed to be SFT,and the unremovable tumor,namely present brain lesions enlarged and metastasized to the chest *** established a definitive diagnosis of intracranial malignant SFT metastasized to the chest *** notified him and his family of the disease,and offered palliative *** passed away on the 29 th hospital *** This case suggests the need for careful,detailed examination,and careful followup when encountering patients presenting with a mass.

关键词： Solitary fibrous tumor Intracranial malignant solitary fibrous tumor Metastasized chest wall tumor Cluster of differentiation 34 STAT6 Case report

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