329 results
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
vs Secondary vs Tertiary ... ↓Phosphate • Tertiary ... Hyperparathyroidism #diagnosis #endocrinology ... Primary #Secondary #Tertiary
Adrenal Insufficiency - Differential Diagnosis Workup Algorithm
Primary Adrenal Insufficiency:
 • Autoimmune primary adrenal insufficiency
 • Adrenoleukodystrophy,
hormone deficiency Tertiary ... Workup #Algorithm #endocrinology
Hypogonadism Differential Diagnosis Algorithm
 • Low testosterone, Normal or low LH, Normal or low FSH -
- Secondary or tertiary ... #Testosterone #endocrinology
Causes of Hypercalcemia
Parathyroid hormone–dependent
Primary hyperparathyroidism
Familial hypocalciuric hypercalcemia
Lithium-associated
Tertiary hyperparathyroidism
Genetic disorders (e.g., multiple endocrine neoplasia type 1 or
Lithium-associated Tertiary ... Differential #Diagnosis #Endocrinology
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
= secondary or tertiary ... Stimulation #Test #Endocrinology
Algorithmic Approach to Hypothyroidism - Differential Diagnosis and Management Framework

Central Hypothyroidism (Secondary or tertiary) ↓TSH, ↓FT4
(Secondary or tertiary ... Diagnosis #algorithm #endocrinology
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
kidney disease • Tertiary ... Hypercalcemia #Causes #endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
MEN 1 and 2A Tertiary ... Diagnosis #Algorithm #Endocrinology
Syphilis - Diagnosis and Management - Primary vs Secondary vs Tertiary
Primary Syphilis
 • Localized lymphadenopathy
 •
vs Secondary vs Tertiary ... • Periostitis Tertiary ... Primary #Secondary #Tertiary
Syphilitic gummas in Tertiary syphilis
Tertiary syphilitic gummas may mimic basal cell carcinoma. The gummatous tumors are
Syphilitic gummas in Tertiary ... syphilis Tertiary ... #gummas #Tertiary