[Importance of MRI in the diagnosis of meniscal ossicle. Apropos of 2 cases].

Purpose Of The Study: To determine the contribution of magnetic resonance (MR) imaging in the diagnosis of meniscal ossicle.

Materials And Methods: Two cases of meniscal ossicle were evaluated by plain radiography and MR imaging. Sagittal and coronal T1-weighted (400/15), proton density and T2-weighted (2,000/20,80) sequences were performed with 0.

[Adamantinoma of the tibia. X-ray computed tomographic and MRI study. Apropos of a case].

Adamantinoma of the long bones in a very rare tumor that mainly affects the tibia. Its diagnosis is difficult both radiologically, as the lesion appears as a poorly specific metaphyseal lacuna with or without periosteal reaction, and histologically. Its prognosis used to be guarded because of recurrence and of possible metastatic diffusion, but it has been considerably improved by wide resection with reconstruction.

[Radiological consequences of lumbar disk surgery. Evaluation by MRI after 3 months].

Radiologic effects of the surgery for lumbar disc herniation: a study with MRI at the end of the third post-operative month. The results of patients operated for lumbar disc herniation are good in 83%, fair in 10% and poor in 7. The poor results are considered to be the consequence of post operative fibrosis.

[Intrathoracic chondrosarcoma arising at a rib in a patient with multiple exostoses].

A case of chondrosarcoma arising from the 7th left rib in a patient with multiple exostosis disease is reported. The initial CT scan feature is a purely intrathoracic mass with a parietal and pericardial junction and calcifications within the tumor. A review of the literature about the costal chondrosarcoma and their CT scan features is done and shows the uncommon initial aspect of this case.

[Metastasis of breast cancer in frontal meningioma].

The authors report a case of metastasis from a breast cancer located in a frontal meningioma. A review of the literature revealed 43 cases of primary intracranial tumours containing a secondary from an unrelated extracranial primary malignant tumour; in 34 of these cases the intracranial tumour invaded was a meningioma.