Résumé
Sujets)
Humains , Mâle , Adulte d'âge moyen , Biopsie , Carcinome épidermoïde , Tissu conjonctif , Curetage , Dépression , Diagnostic différentiel , Épithélium , Kératoacanthome , Peau , Lumière du soleilRésumé
Sujets)
Allogreffes , Diplopie , Énophtalmie , Orbite , Fractures orbitaires , Polyéthylène , TransplantsRésumé
Sujets)
Sujet âgé , Femelle , Humains , Acide acétylsalicylique , Coagulation sanguine , Vaisseaux capillaires , Contusions , Débridement , Oedème , Élasticité , Hématome , Hypertension artérielle , Nécrose , Peau , Tissu sous-cutanéRésumé
Sujets)
Anesthésie locale , Ataxie , Cicatrice , Contracture , Luxations , Consommation alimentaire , Mâchoire , Mandibule , Mastication , Muscles masticateurs , Muscles , Amyotrophie , RéadaptationRésumé
A highly vascular tumor of the head and neck, with the exception a true vascular lesion, has rarely been observed. We report a rare case of a large, highly vascular, mucoepidermoid carcinoma (MEC) of the hard palate in a 28-year-old woman. The highly vascular channels were identified by ultrasonography and angiography. This case is noteworthy in that a large, highly vascular tumor of the minor salivary gland simulated a vascular lesion. When preoperative imaging demonstrates large vascular channels, preoperative angiography will benefit surgical management and embolization should be considered if possible.
Sujets)
Adulte , Femelle , Humains , Angiographie de soustraction digitale , Carcinome mucoépidermoïde/anatomopathologie , Tumeurs de la mâchoire/anatomopathologie , Palais osseux/anatomopathologie , TomodensitométrieRésumé
Many researches have focused upon temporal changes of neurotransmitters and/or neuromodulators in the central nervous system after ischemic insult. In sensory neurons, the spatial and temporal alterations of neurotransmitters have been little studied. Calbindin D-28k (CB) and calretinin (CR) have been suggested to play a role in the transmission of neurotransmitters. Therefore, in the present study we investigated the chronological alteration of CB and CR immunoreactivity in the trigeminal ganglion cells of the Mongolian gerbil after ischemic insult. In the sham operated group, CB and CR immunoreactivities were found in small -, medium -and large -sized neurons. One and two days after ischemia-reperfusion, small and large-sized CB immunoreactive neurons increased significantly. Thereafter, number of the CB immunoreactive neurons decreased markedly. Furthermore, five days after ischemia -reperfusion, CB immunoreactivity was detected in a few neurons, and its immunoreactivity was also very weak in the cytoplasm. Number of the large -sized CR immunoreactive neurons increased significantly one day after ischemia -reperfusion. Thereafter, the number of the large -sized CR immunoreactive neurons decreased. Especially, the number of the medium-sized CR immunoreactive neurons increased dramatically 4 days after ischemia-reperfusion. These results suggest that an increase of CB and CR may play an important role in modulating the mechanoception 1 day after ischemia-reperfusion, because the immunoreactivities increased in large -sized neurons which have the myenlinated A fibers. These results also suggest that significant increase of CR expression in medium -sized neurons 4 and 5 days after ischemia-reperfusion may provoke CR in modulating the nociception or thermoception because the medium-sized neurons which have the myenlinated A sigma or C fibers.
Sujets)
Calbindine-2 , Calbindines , Système nerveux central , Cytoplasme , Gerbillinae , Immunohistochimie , Ischémie , Neurofibres myélinisées , Neurofibres non-myélinisées , Neurones , Agents neuromédiateurs , Nociception , Cellules réceptrices sensorielles , Ganglion trigéminalRésumé
Sujets)
Améloblastome , Améloblastes , Diagnostic , Mandibule , Kystes odontogènes , Kyste radiculaireRésumé
Treatments for restoring the function and esthetics of missing teeth include fixed bridge, partial denture, orthodontic movement, implantation and autotransplantation. However, there is no absolute indications for each techniques. Due to undevelopment of root and root resorption after autotransplantation, the success rate of autotrans-plantation over the past decades have been low. Recently. with the study on biological principles of the healing of periodontal ligament, the success rate of autotransplantation began to improve. We report the cases of successful autotransplantation which resulted in ideal healing of periodontal ligament, gingiva and alveolar bone.
Sujets)
Autogreffes , Prothèse partielle conjointe , Prothèse partielle fixe , Esthétique , Gencive , Desmodonte , Rhizalyse , DentRésumé
Sujets)
Adulte , Femelle , Humains , Cellules acineuses , Carcinome à cellules acineuses , Classification , Hémangiome , Palais osseux , Pronostic , Anomalies vasculairesRésumé