23 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... Cystic LCH: - LAM ... #Differential #Comparison
Hypogonadism Differential Diagnosis Algorithm
 • Low testosterone, Normal or low LH, Normal or low FSH -
Normal or low LH ... testosterone, Normal LH ... testosterone, Normal LH ... testosterone, Elevated LH ... #Testosterone #endocrinology
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... Cystic #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... Cystic #Pattern #Comparison
Menstrual Cycle Physiology: Ovarian Cycle – Brief Overview
LH and FSH are required for follicular development and
Brief Overview LH ... granulosa cells - LH ... following ovulation -> LH ... -> Inhibit FSH/LH ... #menstruation #endocrinology
Infographic depicting the main pearls of various types of congenital adrenal hyperplasia for the medical student.
#CAH #algorithm ... CongenitalAdrenalHyperplasia #diagnosis #comparison ... treatment #Peds #Endocrinology
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 • Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Syndrome Testing Algorithm ... Urine Free by LC-MS ... Syndrome #diagnosis #algorithm ... #endocrinology
Sellar / Pituitary Mass - Differential Diagnosis Algorithm
Adenoma - Primary Anterior Pituitary
 - Secreting
Differential Diagnosis Algorithm ... • TSH • LH ... Differential #Diagnosis #Algorithm ... #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Ovulation Explained

Around Day 14, estrogen exerts sudden +++ positive feedback
understood) -> surge in LH ... production and release LH ... 36 hours after LH ... pathophysiology #Ovulation #endocrinology
Causes of Female and Male Infertility - Differential Diagnosis Algorithm
Causes of Female Infertility:
 • Uterus -
Differential Diagnosis Algorithm ... hypogonadism) Low FSH/LH ... problem) High FSH/LH ... Differential #Diagnosis #Algorithm