13 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
and duration of symptoms ... - Headache, fever ... fatigue, Nausea, abdominal ... #Urticaria #diagnosis ... #rheumatology #
Fever of Unknown Origin (FUO) - Further Workup

 • CNS symptoms? Get an LP and imaging
• CNS symptoms ... Test for the respective ... biopsy • Lab values ... supporting hematologic ... #diagnosis
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
: High fevers, chills ... Test: Donath-Landsteiner ... test #cold # ... hemolytic #anemia #hematology ... #diagnosis
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Algorithm • Sickle ... Agglutination - Cold ... bartonella (oroya fever ... #Algorithm #workup ... #hematology #testing
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... and Workup History ... practices that could ... (GI symptoms/endemic ... #hematology
Irritable Bowel Syndrome (IBS) - Diagnosis and Workup Summary
Use a positive diagnostic strategy with minimal testing.
and Workup Summary ... Criteria - Recurrent abdominal ... last 3 months + symptom ... cultures, but test ... missing things" → fewer
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
matter, spinal cord ... meningitis), MCC CNS symptoms ... • Nonsurgical abdominal ... management #signs #symptoms ... #rheumatology #
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Algorithm Pinpoint ... Red Flags: • Fever ... deficiency Work ... Fecal occult blood test ... Skin biopsy • Abdominal
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Algorithm Polycythemia ... that a one-off value ... Best to have an ... #Algorithm #workup ... #hematology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- GI tract: abdominal ... Presentation - Systemic Symptoms ... Vasculitis: • Fevers ... retinopathy Lab Tests ... #rheumatology #