68 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... and clinical associations ... , abdominal pain ... #rheumatology # ... comparison #table
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... for decreased PLT ... pylori test (GI symptoms ... #Differential #Diagnosis ... #hematology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... 90%, Abnormal Abdominal ... Ultrasound High ... Chronic Chest Symptoms ... #Hematology
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Syndrome: Jo-1, PL7 ... Antibodies #MSAs #clinical ... #diagnosis #rheumatology ... #table
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
Diagnosis Framework ... did not yield a diagnosis ... changes • Urinary symptoms ... dysfunction • PSC ... #Differential #Diagnosis
Acute Fatty Liver of Pregnancy (AFLP)
Pathophysiology:
 • Defect in fetal free fatty acid metabolism products →
postpartum): • Initial symptoms ... = nonspecific (nausea ... , vomiting, abdominal ... Cr, ↓Glucose, ↓PLT ... Antithrombin Ill • Ultrasound
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
Rare Causes of Abdominal ... - May involve symptoms ... neuropsychiatric symptoms ... incisional hernias: clinical ... #differential #diagnosis
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
eyelash follicle • Cause ... upper lid • Cause ... eyedrops, surgery #Clinical ... #Diagnosis #Management ... Chalazion #Comparison #Table
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
- Differential Diagnosis ... disease - Renal ultrasound ... Duplex Doppler ultrasound ... ; MRA; abdominal ... #Workup #table
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
Is visual loss caused ... the optic nerve caused ... Clinical manifestations ... GiantCellArteritis #GCA #Rheumatology ... Ophthalmology #Diagnosis