Figure 1From: Symptomatic hyponatremia following lateral medullary infarction: a case report Brain magnetic resonance imaging and serum sodium level. Diffusion weighted image on admission showed left lateral medullary infarction (A, B) and serum sodium level after admission (C) demonstrated hyponatremia due to syndrome of inappropriate secretion of antidiuretic hormone (SIADH), and fluid restriction aggravated hyponatremia, suggesting cerebral salt wasting syndrome (CSW) as a final diagnosis.Back to article page