45 results
Kerion
Raised, boggy lesion with heaped up purulent nodules 
Caused by host's response to a fungal ringworm
purulent nodules Caused ... fungal ringworm infection ... Hair loss • Fever ... Lymphadenopathy Treatment ... Griseofulvin #Kerion #Dermatology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Myelofibrosis Infectious ... effect following treatment ... Diagnosis #Algorithm #Causes ... #Hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
SLE) - Viral infections ... APLS • Acute Infectious ... mountain spotted fever ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Aplastic Anemia - Illness Script
Signs and symptoms:
 • Recurrent infections from neutropenia
 • Mucosal bleeding from
: • Recurrent infections ... megaloblastic anemia Treatment ... if neutropenic fever ... diagnosis #management #treatment ... #hematology
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
common route of infection ... • Prodrome: fever ... • Autopsy PCR Treatment ... diagnosis #management #treatment ... #microbiology #
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
for secondary causes ... drug reaction, infection ... Strongyloides infection ... glucocorticoid treatment ... Differential #diagnosis #hematology
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
old, ~10,000 new cases ... risk-stratification • Risks: infection ... only curative treatment ... Diagnosis #Management #treatment ... #hematology #oncology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
• Clinical: fever ... Drugs, Unknown cause ... Treatment: • ... diagnosis #management #treatment ... #summary #rheumatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
known as rat bite fever ... or Haverhill fever ... infectiosum • Fever ... acute rheumatic fever ... differential #diagnosis #dermatology
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
Vulnificus skin infection ... marine microbiota & causes ... Rapid onset of fever ... Vulnificus #skin #infection ... rash #cellulitis #dermatology