[Agenesis of the internal carotid artery: two cases report].

The authors report two cases of agenesis of the internal carotid artery evaluated with MR angiography allows the diagnosis of the internal carotid artery agenesis and appreciates both the supply post.

[MRI symptomology in reflex sympathetic dystrophy of the foot].

Purpose: To describe the MRI findings of reflex sympathetic dystrophy of the foot and ankle.

Methods: Retrospective study of 50 patients with reflex sympathetic dystrophy of the foot (5 with the cold form, and 45 with the warm form) diagnosed based on clinical and scintigraphic findings. All patients underwent MR imaging.

Giant cell tumor of the sternum. Report of a case with a 17q isochromosome.

We report a case of giant cell tumor of the manubrium with radiological evidence of aggressiveness. Few cases of giant cell tumor of the sternum have been published. Extensive surgery offers the best hopes of recovery.

[Comparison of magnetic resonance angiography with injection of gadolinium and conventional arteriography of the ilio-femoral arteries].

Twenty-three patients underwent conventional arteriography and 3D contrast enhanced magnetic resonance angiography explorations. The study was limited to the iliofemoral arteries (13 segments for each patient). Each segment was classified as having 0-49%, 50-99% or 100% stenosis.

[MRI in post-traumatic cerebral fat embolism].

We report two cases of posttrauma cerebral fat embolism evaluated with MRI. Due to sensitivity, MRI is the best examination for detecting focal abnormalities of the grey or white matter. MRI helps to make the diagnosis in atypical cases and allows assessment of both extension and course of the embolism.