[Neurologic manifestations of spinal plasmacytomas].

Twenty nine cases of plasmocytic spinal cord tumors which were responsible for neurological troubles were collected over the 19 year period between 1962 and 1981. In 25 of the cases, spinal cord compression was the first sign of the tumor. In 4 of the cases, spinal cord compression was a secondary complication of an already known tumor.

[Delayed traumatic intracranial hematomas. Value of computer tomography].

Repeated Computerized axial Tomography (CAT) scanning of 4 patients with head injuries showed tardive development of 2 intracerebral hematomas and 2 extradural hematomas. The initial CAT scans were normal; the hematomas were late in developing. The value of repeated post-traumatic CAT scanning, and the pathogenesis of late developing hematomas are discussed.

[Metastasis of visceral tumors in intracranial tumors. Apropos of a metastasis of a lung cancer in an intracranial meningioma].

In a 52 years old man a backward epilepsy revealed a left fronto parietal tumor. The histopathological study shows that it is a meningial tumor composed around by meningocytic proliferation with a metastasis of lung cancer in the middle. This fact was proved only two months after neurosurgical intervention.

[Arteriovenous malformations in deep cerebral area. Topographic classification. Therapeutic possibilities and results about 46 cases (authors' translation)].

The authors study the clinical dispositions of 46 arteriovenous malformations developed in deep cerebral area and detected in 41 cases by an haemorrhagic accident and after make a radiological classification. They class the M.A.

[Treatment of arterio-venous aneurysms (AVA) in language areas. About 18 cases (author's transl)].

This study, about 18 cases of AVA strictly in language areas (posterior end of the inferior frontal gyrus (Broca), posterior third of T1 and T2, supra-marginalis and angularis gyri), prepose to specify the possibilities and the legitimacy of surgical management as well as the technical parts of removal. Malformations may divided in to : 1 arterio-venous fistula, 3 medium AVAS, 8 important AVA, 6 cirsoïdum aneurysms. 15 patients presented one or several intracranial hemorrhage (ICH).

[Interest of the interthalamotrigonal appraoch to the third ventricle and pineal area's tumors (author's transl)].

The roof of the third ventricle is lying on the thalamus parts. When a tumor fills and expands the third ventricle it is always possible to lift up this velotrigonal roof like the cover of a box and to access to these lesions. The authors have approached 15 tumors of the third ventricle or pineal area by this route interthalamotrigonal about 78 cases of tumors operated in the Lille's neurosurgery department during 30 years.

[Pseudo-tumoral cerebellar infarction. Diagnostic, therapeutic and prognostic aspects in 12 cases (author's transl)].

In those 12 observations, without associated lesion in the brain stem, diagnosis is done 3 times at autopsy, 8 times at surgical time, and once before it, on clinical and radiographic arguments. Diagnosis must be systematically evoked in front of vestibular symptoms, before severe signs, related to intracranial hypertension and brain stem compression, become evident. Iodoventriculography (7 times) and principally computerized tomography (2 times) bring conclusive arguments for diagnosis.

[Pseudo-tumoral cerebellar infarction and Arnold-Chiari malformation].

A pseudo-tumoral cerebellar infarction developed in a 48-year-old man over the course of several days. External drainage improved the patients condition, and a subsequent operation showed a type I Arnold-Chiari malformation with cerebellar amygdalae descending to the level of C2. The infarcted postero-external part of the cerebellar lobe and the left amygdala were resected.

[Frontosphenotemporal fractures : a separate anatomical and clinical entity (author's transl)].

The author describes twenty cases of a type of external craniofacial fracture centred on the orbit, characterized by the frequency of ophthalmological complications, and mobilizing a segment of the frontosphenotemporal vault, and segments of the middle and anterior stages of the base of the skull. It is suggested that these be called frontosphenotemporal fractures.

[Fronto-orbital osteotomies for craniostenoses. 21 cases (author's transl)].

Three types of craniostenoses, plagiocephalies, trigonocephalies, and oxy-brachycephalies provoke modifications in the fronto-orbital region of the face, for which fronto-orbital remodelling osteostomies are proposed. Results obtained in 21 cases treated in this manner were very encouraging, as they were of good quality.

[Lumbosacral dysraphia and "long spinal cord" of delayed appearance (9 cases)].

Urinary disorders, deformities of the feet, and sensory of trophic disturbances appearing during, or increasing in severity at adolescence, were observed in 9 patients. In seven cases there appeared to be an abnormality of the teguments of the lumbosacral region, and in all cases, as shown by straight radiological examination of a spina bifida of L5 or S1, a sacral dehiscence and wide sacral canal, and a subjacent nervous tissue abnormality was suspected. Radiculography showed the presence of a "long spinal cord" terminating in the sacrum by a tumor mass.

[Correlations between intracranial pressure variations and EEG changes in patients with cranial trauma (author's transl)].

Polygraphic studies were performed over periods of 14 to 76 hours in 30 patients with reccent closed cranial injuries. Correlations between ICP and EEG findings were rarely found (3/16) in cases of cerebral dysfunction of mesodiencephalic or lower levels, where both ICP and EEG were usually stable. Correlations are regularly found in diencephalic or higher (10/14) levels and their presence is of favourable prognostic significance.