Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række
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Horner's syndrome is characterized by the classic triad of eyelid ptosis, miosis and facial anhidrosis and is caused by an interruption of the oculosympathetic nerve pathway somewhere between its origin in the hypothalamus and the eye. ⋯ The path of the long oculosympathetic fibers is complex and not fully understood. Topographic diagnostics may be challenging, but in most cases a specific cause is identified.