[Maxillary ossifying fibroma: apropos of 3 cases]. / Fibrome ossifiant maxillaire: à propos de trois cas.

Three cases of ossifying fibroma of the maxilla are reported in two young females and in one child. The characteristic of this benign fibro-osseous tumour are described. The authors insist on the necessity of a confrontation between the clinical, the radiological and the histopathological aspects of this tumour to establish a diagnostic.

[Infectious temporomandibular arthritis. Apropos of a case in an adult]. / Arthrite infectieuse temporo-mandibulaire. A propos d'un cas chez l'adulte.

Imagery revealed osteitis of the base of the skull in a 37-year-old patient with infectious arthritis of the temporomandibular joint. The characteristics of this rare pathology were recalled from a review of the literature.

[Indications and role of surgery in painful dysfunction syndromes of the masticatory apparatus]. / Indications et place de la chirurgie dans les syndromes algo-dysfonctionnels de l'appareil manducateur.

Among the numerous causes of facial neuralgias, the painful dysfunction syndrome of the manducatory apparatus corresponds to a frequent etiology whose thorough study carried out by a multidisciplinary team over about 500 cases allowed their splitting into several evolutive clinical forms. At present, a number of these forms which are particularly painful, require a disk surgery (dislocation reduction, perforation suture, etc.) and if necessary an articular facet surgery (modelling condylectomy, surfacing, etc.). This study specifies the indications and prognosis for these surgical operations.

[Arthrotomy for the permanent displacement of the temporomandibular meniscus. A coagulation-retraction technic of the posterior meniscal frenum]. / Arthrotomie pour déplacement permanent du ménisque temporo-mandibulaire. Technique de la coagulation-rétraction du frein méniscal postérieur.

An original technique for surgical treatment by arthrotomy for permanent closed lock of the temporo-mandibular joint is described. This technique uses the temporo-meniscal compartment approach. The superior belly of the posterior meniscal attachment is dissected and retracted by a diathermy coagulation. Advantages of this technique are compared to the usual techniques of meniscopexy and meniscorrhaphy using a suture. The indications are proposed.

Sleep changes in emperor penguins during fasting.

The proportion and the distribution over 24 h of the different arousal stages characterized in emperor penguins [wakefulness (W), drowsiness (D), slow-wave sleep (SWS), and paradoxical sleep (PS)] were studied under natural ambient conditions in four subjects that were first fed and then deprived of food for 7-18 days. In both fed and fasting states, each arousal stage was distributed through numerous episodes of short duration. The fasting state provoked only a slight increase in D. There was, however, a large increase in SWS, which increased from 37.5 to 55.4%/day, mainly at the expense of W, which fell from 42.7 to 21.9%/day, in close relation to the first two fasting phases when proteins were saved and when most of the energy was derived from lipids. PS proportions were lower during fasting (from 5.7 to 2.4%/day). These changes in the arousal stages in emperor penguins are examined for their implications in sleep mechanisms and energy saving. Their possible consequences, due to the reduced alertness, are also discussed.

[Malignant mixed mesodermal tumor with endocrine cells of the corpus uteri]. / Tumeur mixte mésodermique maligne du corps de l'utérus avec cellules endocrines.

A case of uterine malignant mixed mesodermal tumor harboring endocrine cells is reported. Endocrine cells were immunocharacterized as serotonin, somatostatin and pancreatic polypeptide cells. This variety of mixed müllerian tumor is added to other endocrine cells-containing neoplasms of the uterus.

Prevalence of viral warts on the hands of retail butchers.

The prevalence of viral warts on the hands was found to be the same in a group of 113 workers in butcher's shops as in a control group of 115 mechanics. This low prevalence is discussed and statistically compared to previous studies in the literature.

An electrophysiological and behavioral study of sleep in emperor penguins under natural ambient conditions.

In two pairs of emperor penguins surgically implanted for chronic recordings of EEG, EOG and EMG, four arousal stages were characterized on the basis of behavioral and electrophysiological criteria: wakefulness (W), drowsiness (D), slow-wave sleep (SWS) and paradoxical sleep (PS). The general patterns of electrographic correlates observed for each arousal stage resemble those reported in other birds. Sleep patterns were examined with these two pairs placed under natural ambient conditions of light and air temperature, the first pair being exposed to moderate cold under alternate conditions of day and night, and the second studied when daylight was total at thermoneutrality. The time spent in sleep (TST) by each group was 41.3% and 45.1% of the 24 hr period respectively, the difference not being significant. As in other birds, PS occurred in very brief episodes lasting, on average, 8 to 10 seconds and occupying only 5 to 6% of the 24 hr period. Whatever the external conditions, the PS to TST ratio appeared to remain unchanged (12 to 14%). Its relatively high value is discussed in relation to predation susceptibility.

[Spontaneous rupture of an aneurysm of the splenic artery in pregnancy. Apropos of a new case]. / Rupture spontanée d'un anévrysme de l'artère splénique en cours de grossesse. A propos d'un nouveau cas.

The authors report a case of a two para who was admitted as an emergency after collapsing at the end of her pregnancy. Various clinical examinations carried out on admission showed that she was in a state of hypovolemic shock with a marked drop in her blood pressure and a fast pulse as well as pain in the left hypochondrium radiating up to her shoulder. From the obstetrical point of view, there had been no bleeding and no uterine contractions and the fetal heart tracing showed a rate of 135. After intensive efforts at resuscitation an urgent laparotomy was carried out with as a first step Caesarian section which confirmed that there was no pathology in the placenta or uterus, followed by exploration of the abdominal cavity which revealed a large retro-peritoneal haematoma together with a ruptured aneurysm in the hilum of the spleen. Splenectomy was carried out after haemostasis of the splenic pedicle had been performed and this allowed her to recover without complications. Following this case the authors looked up the world literature and confirmed that the pathology was classic but very rare indeed, there being only 66 published cases. As far as its aetiology was concerned this aneurysm is not the same as a classical splenic aneurysm. The development of the aneurysm seems to take place during the pregnancy and the reason for this arterial aneurysm and its rupture in unknown. A theory has been advanced that circulatory and haemodynamic factors acquired in pregnancy reveal the congenital factor that is already present.(ABSTRACT TRUNCATED AT 250 WORDS)