Introdução: Os feocromocitomas são tumores neuroendócrinos raros que podem ocorrer esporadicamente ou, em cerca de 30% dos casos, em contexto de sÃndromes familiares. Dez por cento são malignos. A Neurofibromatose tipo 1 é uma doença autossómica dominante que se associa à ocorrência destes tumores. O feocromocitoma surge em 0.1 a 5,7% dos doentes com Neurofibromatose tipo 1, sendo geralmente lesões...
Introduction: Pheochromocytomas are rare neuroendocrine tumors that can occur sporadically or, in about 30% of cases, in the context of family syndromes. Ten percent are malignant. Type 1 neurofibromatosis is an autosomal dominant disease that is associated with the occurrence of these tumors. Pheochromocytomas appears in 0.1 to 5.7 % of patients with type 1 neurofibromatosis, and are usually solitary and benig...
The impact of ELM activity and density limit disruptions on the plasma density as well as the use of reflectometry for plasma position and shape control are discussed here. Fast density measurements allow the definition of three characteristic phases of the ELM: precursor, collapse and recovery. At the precursor phase low frequency oscillations starting approximately 3 ms prior to the ELM collapse are observed ...
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