32 results
Liver Abscess
•	Pyogenic abscess, accounts for 80% of abscess.
•	Amebic abscess due to Entamoeba histolytica, accounts for 10%.
•	Fungal
Liver Abscess • ... 50% of solitary liver ... in the right Liver ... • Fever in 90% ... cm Continuous fever
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Abscess, bacteremia ... Causes: • Still's ... Endocarditis • Hepatic abscess ... Brucellosis • Liver ... or lung abscess
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... : • 80% have fever ... anemia • Sputum/Blood ... decubitus - air fluid level
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... Source control (abscess ... (daptomycin in lungs ... SJS, DIHS, drug fever ... thrombophlebitis), HAP, Blood
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
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Chest pain, cough, bloody ... lymphadenopathy, • Abdominal ... factor • May cause ... #Infections #HIV
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
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
respiratory symptoms • Fever ... Pulmonary 3) Abdominal ... • Cough, fever ... Sinusitis • Brain abscess ... • Isolated fever
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
Pain Causes - Differential ... Long-standing vs ... Red Flags: • Fever ... the patient • Blood ... • Splenomegaly/Abscess
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... Microbiology: Blood ... night sweats, fever ... • Blood cultures ... Treat underlying cause