Hiponatremia sintomática como forma de presentación clínica de un macroadenoma hipofisiario: Comunicación de tres casos / Hyponatremia associated to pituitary adenomas: Report of three patients

Severe hyponatremia occurring as the presenting feature of hypopituitarism secondary to pituitary adenomas is rare. We report three patients with this condition: Two elderly males (74 and 78 year-old) presenting with impaired consciousness and low plasma sodium after an episode of diarrhea and a 56-year-old male presenting with impaired consciousness after an episode of vomiting. All had clinical features of hypopituitarism and pituitary adenomas were found on imaging studies. Two were subjected to a trans sphenoidal resection of the adenoma.

Disección espontánea de la arteria renal e infarto renal: dos casos clínicos / Spontaneous dissection of the renal artery ano kidney infarction: report of two cases

We report two previously healthy males aged 33 and 37 years, presenting with severe pain in the right and left part of the abdomen, respectively. An abdominal CT sean showed in both a kidney infarction. An angio-CAT sean showed changes compatible with a fibromuscular dysplasia in the renal arterial wall. An angiography showed an intimal tear or complex dissection flap in both cases. Both had a satisfactory evolution with conservative treatment. The relationship between fibromuscular dysplasia and spontaneous dissection of the renal artery is discussed.