22 results
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Phosphate Physical Symptoms ... : Commonly no signs ... pain Psychiatric Symptoms ... Hyperparathyroidism #diagnosis #endocrinology ... Secondary #Tertiary #pathophysiology
Osteoporosis: Pathogenesis and risk factors

 • Age > 30 (post-peak bone mass)
 • Post-menopausal women ->
IBD • Chronic liver ... Corticosteroid use • Primary ... #Osteoporosis #pathophysiology ... #signs #symptoms
Primary Biliary Cirrhosis (PBC) - Summary

PBC Epidemiology:
 • Female:Male 9:1
 • Common European descent
 • Age:
• Female:Male 9: ... 65 years PBC Pathophysiology ... intralobular bile ducts causes ... failure PBC Signs ... and Symptoms:
Primary Hyperthyroidism - Pathogenesis and Clinical Findings

Note: Although rare, gestational diseases can lead to thyrotoxicosis due
Primary Hyperthyroidism ... Signs/Symptoms: ... Pretibial myxedema #Primary ... Hyperthyroidism #endocrinology ... #pathophysiology
Schematic representation of the major sources of ammonia production and its excretory pathway (GI = gastrointestinal,
decompensated liver ... Portosystemic shunts - Urinary ... Reye syndrome (Peds ... ) - Primary carnitine ... deficiency #Ammonia #Pathophysiology
Acute Fatty Liver of Pregnancy (AFLP)
Pathophysiology:
 • Defect in fetal free fatty acid metabolism products →
Pregnancy (AFLP) Pathophysiology ... postpartum): • Initial symptoms ... = nonspecific (nausea ... #Pregnancy #hepatology ... diagnosis #management #pathophysiology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Growth Hormone: • Liver ... activates lipolysis Signs ... /Symptoms: • GH ... #FeedbackLoop #endocrinology ... #pathophysiology
Growth Hormone Excess - Pathogenesis and clinical findings
 • Acromegaly and gigantism share the same pathophysiology
share the same pathophysiology ... • Other rare causes ... Overproduction #diagnosis #signs ... #symptoms #endocrinology ... #pathophysiology
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Equina Syndrome Causes ... lumbar spine Signs ... reflexes) • Urinary ... Syndrome #MSK #pathophysiology ... #signs
21-Hydroxylase Deficiency (21-OHD): Pathogenesis and Clinical Findings
Autosomal recessive mutation in CYP21A2 coding for the enzyme 21-OHase
enzyme 21-OHase causes ... Signs/Symptoms/Complications ... #21HydroxylaseDeficiency #21OHD #pathophysiology ... #genetics #endocrinology ... #peds #pediatrics