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Orbit and sinonasal metastases are rare. Renal cell carcinoma (RCC) can metastasise to this region. We present the case of a 49-year-old woman with weight loss, diplopia and a rapidly growing facial mass. The initial diagnosis was a primary tumour and patient underwent excisional biopsy, which showed findings consistent with a diagnosis of RCC. On a subsequent focused review of system, the patient reported having intermittent haematuria. Imaging studies revealed a complex right renal mass as the primary tumour. Metastatic RCC shoul

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The pathology of familial Alzheimer's disease, which is caused by dominant mutations in the gene that encodes amyloid-beta precursor protein (APP) and in those that encode presenilin 1 and presenilin 2, is characterized by extracellular amyloid plaques and intracellular neurofibrillary tangles in multiple brain regions. Here we show that the brain-wide selective disruption of a mutated APP allele in transgenic mouse models carrying the human APP Swedish mutation alleviates amyloid-beta-associated pathologies for at least six months afte