Endocrine Abstracts

TSH-secreting pituitary adenomas are a rare cause of hyperthyroidism. The diagnosis should be considered in all hyperthyroid patients, especially those with a diffuse goiter and no extrathyroidal manifestations of Graves’ disease. Most TSH-secreting adenomas secrete only TSH. Most patients have the typical symptoms and signs ofhyperthyroidism (eg, palpitations, tremor, heat intolerance), but a few patients have mild or even no hyperthyroid symptoms. Other clinical feature...

Pituitary adenomas (PAs) account for 15-20% of intracranial tumors. PA with a cystic component are characterized in the MRI by a sellar, symmetrical, round or ovoid mass that enhances on T1- or T2-weighted images but does not concentrate gadolinium. We present the case of a 48-year-old man who in a headache study by Neurology requested a CT scan showing a cystic pituitary macroadenoma of 1.25cm confirmed by pituitary MRI. In the initial analysis, the pituitary function was pre...

Introduction: The most common cause of hyponatraemia is the syndrome of inappropriate antidiuretic hormone (SIADH). The diagnosis typically requires hyponatraemia in the setting of reduced serum osmolality, inappropriately concentrated urine with normal sodium excretion levels, and the absence of interfering medications, hypothyroidism and adrenal insufficiency. Unless hypertonic saline is indicated for acute onset profound hyponatraemia and/or with severe symptoms, the mainst...

Selpercatinib is a receptor tyrosine kinase RET inhibitor for the treatment of cancers such as RET-mutant medullary thyroid cancer, demonstrating partial response and low incidence of serious adverse events. Vandetanib, a tyrosine kinase inhibitor, has shown promising results with an increase in progression-free survival and prolonged lifetime, but it causes adverse events such as hypertension, diarrhea, rash, or long QT interval. Most of them are can be even disabling for the...