31 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... loss, lethargy, fever ... • Fever, weight ... lymphadenopathy, • Abdominal ... #Infections #HIV
Acute Retroviral Syndrome
Acute Retroviral Syndrome is the symptomatic presentation of acute human immunodeficiency virus infection

 •
Headache (45%) • Fever ... Hepatomegaly - Liver ... 14%), in which case ... subset counts ↓ • Liver ... antibody test) Treatment
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... : • 80% have fever ... Intervention: - Fevers ... #differential #causes
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
marine microbiota & causes ... Rapid onset of fever ... sepsis: chronic liver ... hemolytic anemia, CKD, hiv ... rash #cellulitis #dermatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
SLE) - Viral infections ... deficiency • Liver ... APLS • Acute Infectious ... • HCV, HBV Not ... mountain spotted fever
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... (daptomycin in lungs ... • Secondary to Treatment ... SJS, DIHS, drug fever ... : IV catheter (CLABSI
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
known as rat bite fever ... or Haverhill fever ... cancers, including lung ... infectiosum • Fever ... acute rheumatic fever
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Presentation: Fever ... (elevations of liver ... Manifestations: • Fever ... • Fever and weight
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... disease • Liver ... lymphocytic interstitial lung ... Low serum IgG level ... DDX - Other causes
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Red Flags: • Fever ... Skin biopsy • Abdominal ... ultrasound # ... #dermatology #physicalexam