293 results
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Growth Hormone (GH ... /Symptoms: • GH ... abn lipid • GH ... excess: - ... #FeedbackLoop #
Growth Hormone Excess - Pathogenesis and clinical findings
 • Acromegaly and gigantism share the same pathophysiology
time of onset of GH ... excess. ... GH excess prior ... GH excess after ... GrowthHormone #GH
Acromegaly - Diagnosis and Management Summary - GrepMed Handbook 

Clinical Presentation: 
 • Classic Acromegaly: frontal
excess occurs before ... • GH stimulates ... islet cell tumor, excess ... level (↑Sens) - GH ... (Lanreotide) ± GH
Tall Stature - Differential Diagnosis Algorithm

Normal Growth (BA=CA)
 • Familial Tall Stature
 • XYY Syndrome
Obese BMI
Puberty Onset • GH ... Excess • Hyperthyroidism
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
Prolactin #PRL #FeedbackLoop
Benign Adrenal Mass - Differential Diagnosis Algorithm
Hyperplasia - Often Bilateral
 • Congenital Adrenal Hyperplasia
 • ACTH
Hyperplasia Androgen Excess ... DHEAS Estrogen Excess ... Glucocorticoid Excess ... ) Aldosterone Excess
Acromegaly 
Caused by over-secretion of growth hormone (GH) from the pituitary gland. 
The condition is rare
growth hormone (GH
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Hypernatremia - Excess ... consciousness • No access
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Differential Diagnosis Excess ... Large volume IVF Excess ... diuresis): • Excess ... diuretics • Excess
Malignant Adrenal Mass - Differential Diagnosis Algorithm
Suggestive of Malignancy: Inhomogenous Density, Delay in CT Contrast Washout
Biopsy Androgen Excess ... Hyperplasia) Estrogen Excess ... Glucocorticoid Excess ... ) Aldosterone Excess