11 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... Cystic LCH: - LAM ... LIP #Clinical #Diagnosis ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... LCH: multiple round ... bizarre shaped cysts ... LowAttenuation #Cystic ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... multiple thick walled cysts ... (LAM): regular cysts ... LowAttenuation #Cystic ... #Pattern #Comparison
Sellar / Pituitary Mass - Differential Diagnosis Algorithm
Adenoma - Primary Anterior Pituitary
 - Secreting
- Differential Diagnosis ... • TSH • LH ... Meningioma • Cyst ... #Differential #Diagnosis ... #Algorithm #endocrinology
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
Histiocytosis - Langerhans cell histiocytosis (LCH), Erdheim-Chester disease (ECD), Rosai-Dorfman disease (RDD)
Comparison of Features by Age,
histiocytosis (LCH ... disease (RDD) Comparison ... Histiocytosis #diagnosis ... #comparison #table ... features #management #LCH
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 • Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Urine Free by LC-MS ... Cushing #Syndrome #diagnosis ... #algorithm #endocrinology
Menstrual Cycle Physiology: Correlating the Ovarian and Uterine Cycles
Note: Some charts show different relative levels of
gonadotropins (LH ... Triggered mostly by LH ... pathophysiology #comparison ... #endocrinology
Causes of Male Infertility - Differential Diagnosis Algorithm
Sperm Transport:
 • Vasectomy
 • Cystic fibrosis gene mutation
- Differential Diagnosis ... Vasectomy • Cystic ... Ejaculatory duct cysts ... hypogonadism) Low FSH/LH ... problem) High FSH/LH
Acromegaly - Diagnosis and Management Summary - GrepMed Handbook 

Clinical Presentation: 
 • Classic Acromegaly: frontal
Acromegaly - Diagnosis ... Differential Diagnosis ... syndrome) Diagnosis ... adenoma, ↓(TFT, LH ... #Management #Endocrinology