[Lipoma of the corpus callosum. 3 case reports and review of the literature]. / Lipome du corps calleux. A propos de trois cas et revue de la littérature.

Lipoma of the corpus callosum is a rare congenital intracranial tumor. Although only 153 cases had been reported as of March 1992, the incidence of this tumor is underestimated (some cases are unpublished and others are asymptomatic). Three cases of lipoma of the corpus callosum diagnosed in children are reported herein. These tumors may be either discovered fortuitously in an asymptomatic patient or responsible for manifestations of which the most common are seizures, headache, and mental disorders. Diagnosis rests on imaging techniques. The main investigation is computed tomography which discloses a mass composed of fat, with or without peripheral calcifications, and also identifies any other malformations such as dysgenesis of the corpus callosum.

[Cerebral miliary tuberculosis. Apropos of 5 cases and review of the literature]. / Miliaire tuberculeuse cérébrale. A propos de 5 cas et revue de la littérature.

The authors report 5 cases of cerebral miliary tuberculosis studied by computerized tomography and review 5 cases of the literature. Computerized tomography can see very small tuberculomas, of several millimeters. Chest miliary tuberculosis is found in all their cases, and 3 of the 5 cases of the other authors. Because of the discretion of neurological signs and the association with chest miliary, we suggest to make a computed tomography of brain of all patients who have chest miliary tuberculosis despite the absence of neurological signs and we think that we will find out other cases of brain miliary tuberculosis.

[Cutaneous-mucosal hyalinosis with cerebral sites. 3 new cases]. / Hyalinose cutanéo-muqueuse avec localisations cérébrales. Trois nouveaux cas.

The authors report about 3 new cases of cutaneous-mucosal hyalinosis, or Urbach-Wiethe disease, with cerebral sites. The intracranial calcifications were detected without any neurological presenting features, and were discovered incidentally on radiographs of the skull. The CT examination allows specifying the site of these calcifications, in the gyri of the hippocampus.

Ureteral valves: report of a case diagnosed by antegrade pyelography.

Ureteral valves are an uncommon cause of upper urinary tract obstruction. The majority of cases are discovered only at surgery or autopsy. We report a case diagnosed by antegrade pyelography under sonographic guidance and we review the literature.

[Cavitary tumor lesions of the small intestine. Radio-ultrasonic diagnosis. Apropos of 4 cases]. / Les lésions tumorales cavitaires du grêle. Diagnostic radio-échographique. A propos de 4 observations.

Excavated lesions of small intestine are rare and generally of a malignant nature, the must frequent cause being metastases. In Tunisia these lesions are usually the aneurysmal type of lymphoma. The etiology in a series of four cases of excavated lesion of small intestine was not always lymphomatous. Radiologic and ultrasound semeiology are outlined and etiologies discussed. Scan images are not available since whole-body scanners are not in use in Tunisia.