6335 results
Diagnostic Schema for Hyperferritinemia

Pearl: Diseases associated with extreme elevations: 
1. HLH 
2. Still's disease 
3. Systemic
Diagnostic Schema ... Hyperferritinemia Pearl: Diseases ... Still's disease ... histoplasmosis #Ferritin ... #Differential #Diagnosis
Adult-Onset Still's Disease (AOSD)
Rare inflammatory disorder of unknown etiology, difficult to diagnose because of heterogenous presentation.
Adult-Onset Still's Disease ... , difficult to diagnose ... CRP, AST+ALT, ferritin ... AOSD: F>M, low ferritin ... AdultOnset #Stills #Disease
Iron Deficiency Anemia - Differential Diagnosis Algorithm

Labs: Ferritin, iron, transferrin, TIBC, TSAT, sTfR

 • Blood loss:
- Differential Diagnosis ... Algorithm Labs: Ferritin ... Structural: Celiac disease ... #Differential #Diagnosis ... #Algorithm #ferritin
For an elderly patient with multiple comorbidities it can be challenging to determine if their anemia
anemia of chronic disease ... following approach: #Diagnosis ... Anemia #Algorithm #Ferritin
Adult Onset Still's Disease
Systemic inflammation with urticarial rash.
Rash: 
 • Nonpruritic, evanescent (correlates with time of
Onset Still's Disease ... • Leukocytosis Diagnosis ... widely used for diagnosis ... onset #Stills #disease ... #AOSD #diagnosis
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential Diagnosis ... MCHC, Serum Iron, Ferritin ... Anemia of Chronic Disease ... #Differential #Diagnosis
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... deficiency if: • Ferritin ... Test for celiac disease ... Evaluation #workup #diagnosis
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Auto-amplification loop Diagnosis ... dysfunction, ↑ Ferritin ... • Autoimmune diseases ... Adult-onset Still disease ... Lymphohistiocytosis #diagnosis
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
age, however the disease ... Presentation / Diagnosis ... Diagnosis via genetic ... cell activity • Ferritin ... Infection should be diagnosed
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
highly inflammatory disease ... Adult-onset Still disease ... of underlying disease ... dehydrogenase • ↑ Ferritin ... Activation #Syndrome #Diagnosis