[Quantification of hepatic arterial and portal venous flow using ultrasound contrast agents for early detection of liver metastases of colorectal cancers].

Purpose: To quantify liver blood flow using US contrast agents and to evaluate arterial and portal changes in control patients and patients with liver metastases.

Materials And Methods: Twenty eight patients were included in this study, 8 controls (M0) and 20 patients with liver metastases from colon carcinoma (M+). Hepatic blood flow from hepatic artery and portal vein were determined using quantification of enhancement after contrast injection using Power Doppler US.

[Radiotherapy of ocular melanoma: physical and radiobiological bases, current techniques and future prospects].

Primitive ocular melanoma is a rare tumor in adults. Although this tumor is radio-resistant and located in a very radiosensitive organ, a conservative approach using radiotherapy is feasible for small or medium size melanomas. The physical and radiobiological basis of the techniques presently used, brachytherapy and protontherapy, are presented together with the complications inherent to each treatment.

[Maxillary metastasis of malignant thymoma].

The authors report a case of maxillary metastasis in the follow up of a malignant thymoma. It seems to be the first case reported in today's scientific literature. The clinical presentation, histopathological features and prognosis of malignant thymoma are discussed.