460 results
Hemophagocytic Lymphohistiocytosis (HLH)
Clinical Features: Fever, Splenomegaly, Hepatomegaly, Lymphadenopathy, Confusion
Classic lab findings in HLH: ↑↑ ferritin, Anemia,
Lymphohistiocytosis (HLH ... lab findings in HLH ... : ↑↑ ferritin, Anemia ... consistent with HLH ... cell lines) • ↑ ferritin
Diagnostic Schema for Hyperferritinemia

Pearl: Diseases associated with extreme elevations: 
1. HLH 
2. Still's disease 
3. Systemic
HLH 2. ... histoplasmosis #Ferritin
Causes of Hyperferritinemia - Differential Diagnosis
Ferritin > 1000
Ferritin is the storage form of iron. Increased hepcidin
Differential Diagnosis Ferritin ... > 1000 Ferritin ... hepcidin prevents ferritin ... HLH or Adult Onset ... In adults, HLH is
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Lymphohistiocytosis (HLH ... / Diagnosis: HLH ... cell activity • Ferritin ... If no response HLH ... TheIDtrivia #HLH
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH ... dysfunction, ↑ Ferritin ... • Familial HLH ... XLP) Acquired HLH ... Nicolas Taar #HLH
Iron Panel Interpretation

Iron deficiency - ↓ Iron, ↑-nl Transferrin / TIBC, ↓ Transferrin Saturation,  ↓
Saturation, ↓ Ferritin ... Saturation, ↑-nl Ferritin ... Saturation, ↓-↑-nl Ferritin ... Saturation, ↑-nl Ferritin
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
lymphohistiocytosis (sHLH ... lymphohistiocytosis (HLH ... hypersensitivity syndromes • HLH ... dehydrogenase • ↑ Ferritin
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
deficiency if: • Ferritin ... workup #diagnosis #gastroenterology
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
and Screen for HLH ... HLH syndrome 5.
Nutrient Deficiencies and Supplementation Post Gastric Bypass Surgery
Nutrient Deficiencies:
 • Most frequent in the malabsorptive surgeries
Zn, Selenium • Ferritin ... TypicallySilent via Emory Gastroenterology ... Surgery #bariatric #gastroenterology