Cavernous haemangioma of the facial nerve Escada, P; Capucho, C; Silva, J M ...
Journal of laryngology and otology,
09/1997, Letnik:
111, Številka:
9
Journal Article
Recenzirano
Facial nerve haemangiomas are probably the most frequent benign tumours involving the facial nerve in its intratemporal portion. Usually facial nerve dysfunction is present when these tumours are of ...extremely small size, the average tumour being less than 10 mm. We present a case of a 15 mm diameter cavernous haemangioma of the geniculate region, with histological findings of nerve infiltration, without facial nerve symptoms. The atypical clinical presentation justifies the report and subsequent literature review.
Foi realizada eletroneuromiografia em 45 pacientes com doença de Charcot-Marie-Tooth (CMT). A classificação em tipo I e tipo II da doença de CMT foi feita com base na neurocondução motora do mediano ...e do ulnar. Assim 11 pacientes eram do tipo I e 34 eram do tipo II. No tipo I não houve relação entre a queda da VCN motora do ulnar e mediano com o quadro clínico da doença. Devido a ausência do potencial de ação sensitivo (PAS) do nervo sural em muitos casos, achamos impossível a classificação da doença pela neurocondução deste nervo. Muitos pacientes com doença de CMT II, tinham neurocondução normal, porém a amplitude do PAS do sural estava ausente ou reduzida, mostrando tratar-se realmente de doença do nervo periférico e não da ponta anterior da medula. Achamos que o estudo da neurocondução é o mais importante na classificação da doença de CMT.
Meningoencephalic herniation into the middle ear (MHME) is a rare condition. It can result from ear surgery, infection, head trauma or can be spontaneous. Diagnosis requires a high degree of clinical ...suspicion. The presentation may suggest the condition, but sometimes the intraoperative discovery of an occult meningoencephalic herniation may be a frightening situation. Treatment planning must avoid intra-cranial complications. Transmastoid (TM) and middle cranial fossa (MCF) are alternative or complementary approaches, determined by several factors, including the size and the site of the bony defect and the presence or absence of middle ear infection. Three case reports are presented and a review of the literature is performed, to explain some aspects related to MHME, including aetiopathogenesis, clinical presentation, histopathology, diagnosis and treatment.
The electrophysiological studies of 45 patients with Charcot-Marie-Tooth disease (CMT) are presented. The nerve conduction of the motor median and ulnar nerves permitted us to separate our patients ...in two types: type I (demyelinating) with motor nerve conduction (MNC) below 38 m/s (11 cases) and type II with MNC normal or above 38 m/s (34 cases). In type I there was no correlation between reduction in MNC and clinical severity. It was not possible to classify the disease on the sural nerve sensory action potential (SAP). They were unobtainable in most cases. In many patients with CMT type II the MNC was normal. In the cases the sural SAP was absent or reduced. We concluded that the MNC study is the best useful test to classify CMT disease in type I and type II.
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