107 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
Summary of Infections in which Steroids play a role in treatment
 • TB meningitis
 • TB
Summary of Infections ... play a role in treatment ... pericarditis (select cases ... Severe typhoid fever ... #management #treatment
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
SLE) - Viral infections ... mountain spotted fever ... Differential #Diagnosis #hematology ... #rheumatology # ... #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 #
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
• Clinical: fever ... , ↓ Fibrinogen level ... Drugs, Unknown cause ... Treatment: • ... #summary #rheumatology
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
Anaplasma Infection ... after bite • Fever ... ), cough (30% cases ... #Anaplasma #Infection ... #diagnosis #microbiology
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Causes of Pericardial ... , Candida Non-Infectious ... : • Rheumatologic ... Mediterranean Fever ... #cardiology
Microbial Etiology of Acute Pharyngitis - IDSA
Bacterial
 • Group A streptococcus - Pharyngotonsillitis, scarlet fever
 •
Pharyngotonsillitis, scarlet fever ... Pharyngoconjunctival fever ... croup • EBV - Infectious ... #differential #causes ... #bacteria #microbiology
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... Diagnosis: • Non-Infectious ... Immunocompromise Treatment ... • Secondary to Treatment ... SJS, DIHS, drug fever