]> 2026-07-31T11:51:12+00:00 WBR0145 0 en 21-hydroxylase deficiency Gitelman syndrome Secreting pituitary tumor The most common secreting pituitary tumor would be a prolactinoma, which presents in adults with bilateral hemianopsia, galactorrhea and amenorrhea. In children, it causes headache and growth arrest. Another possible tumor would be a growth hormone secreting tumor, which would cause accelerated growth. This child has none of these symptoms. Bartter syndrome Lipoid nephrosis Pathology A 2-year-old girl is brought to the pediatrician by her mother for excessive drinking and urination. The patient’s mother recalls an uneventful pregnancy and delivery. The patient had a normal neonatal growth course and has successfully met previous developmental milestones. The patient’s vital signs are a temperature of 37.2 C (99.0F), pulse of 140 bpm, and blood pressure of 110/80 mmHg. On physical examination, the patient’s skin turgor shows delayed recoil and her extremities are mottled and cyanotic. Physical examination is otherwise unremarkable. Laboratory testing is significant for metabolic alkalosis, hypokalemia, elevated plasma renin and aldosterone. Urinalysis reveals markedly elevated urinary calcium and potassium with no evidence of casts, hematuria, or leukocyturia. What is the most likely diagnosis? D Renal 2020-10-27T23:28:31Z 2459150.4781366 WBR0145