29 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 ... Diagnosis #Radiology #CTChest ... Differential #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
shaped cysts of LCH ... patients with LCH ... Clinical #Radiology #CTChest ... #LCH #LangerhansCellHistiocytosis
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
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Staging • FSH, LH ... obgyn #gynecology #algorithm
Diagnosis of Primary Amenorrhea
A diagnostic approach to primary amenorrhea. (FSH = follicle-stimulating hormone; LH = luteinizing
follicle-stimulating hormone; LH ... #Differential #Algorithm
Intern Pocket Cards - Inpatient Anti-Emetics Guide
Serotonin antagonists:
 • Ondansetron (Zofran), Granisetron (Kytril, Sancuso) - Headache,
paradoxical excitation ACh ... DA/Histamine/ACh ... disorientation, seizure • THC ... #pharmacology #table
A diagnostic approach to secondary amenorrhea. (DHEA-S = dehydroepiandrosterone sulfate; FSH = follicle-stimulating hormone; LH =
follicle-stimulating hormone; LH ... #Differential #Algorithm
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
histiocytosis (LCH ... LCH is called a ... Radiology #CXR #CTChest ... LangerhansCellHistiocytosis #LCH