121 results
Hemophagocytic Lymphohistiocytosis (HLH)
Clinical Features: Fever, Splenomegaly, Hepatomegaly, Lymphadenopathy, Confusion
Classic lab findings in HLH: ↑↑ ferritin, Anemia,
Lymphohistiocytosis (HLH ... ) Clinical Features ... lab findings in HLH ... : ↑↑ ferritin, Anemia ... 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
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup ... and Screen for HLH ... HLH syndrome 5. ... #Pancytopenia #Workup
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH ... accumulation of clinical ... Assessment • Clinical ... dysfunction, ↑ Ferritin ... • Familial HLH
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Lymphohistiocytosis (HLH ... : Overwhelming clinical ... / Diagnosis: HLH ... cell activity • Ferritin ... If no response HLH
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup ... and Screen for HLH ... HLH syndrome 5 ... #Pancytopenia #Workup
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
lymphohistiocytosis (HLH ... fever syndromes Clinical ... Fever is the main clinical ... hypersensitivity syndromes • HLH ... dehydrogenase • ↑ Ferritin
Causes of Approach to Altered Level of Consciousness - Workup
Clinical Exam - Focal
 • Trauma
 •
Consciousness - Workup ... Clinical Exam ... Imaging Section Clinical ... Refer to Blood Work ... #diagnosis #workup
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Diagnosis Framework Workup ... Staging • FSH, LH