Electrochemotherapy is a new anticancer therapy in which transient permeabilization of cells by an electric field induces a significant increase in the bleomycin concentration and toxicity in tumour cells. We report a clinical study of electrochemotherapy in malignant melanoma. The main issues addressed were the effect of the size of the nodules, the optimization of the electrical parameters, and posttreatment clinical observations. Four patients were enrolled in the study. They received a 10 mg/m2 dose of bleomycin administered intravenously, followed by short, intense electric pulses applied directly to the skin at the tumour sites. Antitumour effects were obtained, especially in the smallest nodules. Objective responses were obtained in more than 90% of the 55 nodules treated, with a complete response rate of 9%. All patients tolerated the treatment well. No residual effects from the electric pulses were observed, even when a high number of pulses were required or when two consecutive treatments were applied. These results are encouraging and the study should be continued.
A case of intrarenal malignant pheochromocytoma, closely resembling hypernephroma radiologically, is presented. This tumor with 2 other pulmonary masses, recurred 12 years after ablation of an adrenal pheochromocytoma and extended into the inferior vena cava.
Tumor motion due to respiration during radiation therapy for non-small cell lung cancer is a significant problem. This article reports on two techniques used to control tumor motion: respiratory gating and the deep inspiration breath hold technique. This technique was implemented in 40 patients without significant difficulties and there are encouraging clinical outcomes.
Tumor motion due to respiration during radiation therapy for non-small cell lung cancer is a significant problem. This article reports on two techniques used to control tumor motion: respiratory gating and the deep inspiration breath hold technique. This technique was implemented in 40 patients without significant difficulties and there are encouraging clinical outcomes.
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