MOHAMMED CHAABANE

  • Citations Per Year
Learn More
This 11-year-old boy was admitted in March 1986 for cervical adenopathy progressing for two months. Physical examination revealed a tumor of the nasopharynx which proved to be an undifferentiated carcinoma on histology. Under radiation and chemotherapy the tumor size decreased only partially. Four months later, the patient consulted for diffuse joint pain.(More)
The study of stability and/or stabilizability is, in general, based on one of the following techniques: the Lyapunov-Razumikhin method yielding delay-independent conditions (Hale, 1977; Hmamed, 1997; Li and Souza, 1996; 1997a; Mahmoud, 2000; Niculescu et al., 1994; Su, 1994; Su and Huang, 1992; Sun et al., 1997; Wang et al., 1987; Xu, 1995; Xu and Liu,(More)
Meningeal melanocytoma is a rare benign pigmented tumor. It develops from melanocytes normally present in the meninges of the posterior fossa and medulla. It is an extra axial tumor, that manifests due to compression of adjacent structures. The authors report a case of meningeal melanocytoma located at the foramen magnum. They insist on the characteristic(More)
Three cases of nephroblastoma presented "egg-shell" peripheral calcifications of pseudocystic appearance of radiology. These peripheral lesions are compared with the more commonly reported central calcifications. Their pathology is unknown and they lack prognostic significance of any importance. As for all nephroblastomas the diagnosis is based on straight(More)
The undeniable value of brain ultrasound imaging in the detection of ventricular dilatation is emphasized, and a classification of intracranial calcifications proposed: hyperechogenic, nodular and irregular large images and those without a posterior shadow cone. Comparison between simple films and particularly computed tomography images was conducted in the(More)
Over the last eight years (1975-1983) a total of 31 cases of circumscribed non-tuberculous osteomyelitis in children have been treated as against 21 cases of classical acute osteomyelitis, suggesting transformation of the mode of presentation of this disease. Lesions were located in the pelvis (8 cases), the calcaneum (3 cases) and the long bones (20(More)
A three year old child who had been suffering from oral candidiasis since the age of 1 year presented with osteitis of the clavicle, 2 cerebral frontal abscesses and an occipital abscess which extended across the calvaria and was associated with osteolysis. Histological and microbiological studies following surgery confirmed the diagnosis of candidiasis in(More)
  • 1