37 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
loss, lethargy, fever ... • Fever, weight ... be normal • Fever ... lymphadenopathy, • Abdominal ... Infections #HIV #AIDS #pulmonary
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
, acute HIV infection ... Cough, dyspnea - Pneumonia ... melioidosis, typhoid, pulmonary ... , Lassa fever, acute ... infection • Abdominal
Causes of Acute Onset Fever - Differential Diagnosis Algorithm
Viral:
 • Rhinovirus
 • Influenza Virus
 • Parainfluenza
Onset Fever - Differential ... Infection • Pneumonia ... • Thoracic • Abdominal ... disease • Drug fever ... #Fever #Acute
Causes of Acute Pediatric Cough - Differential Diagnosis Algorithm
No Fever, No Tachypnea
 - Normal Chest Auscultation
Causes of Acute ... Differential Diagnosis Algorithm ... No Fever, No Tachypnea ... Fever, Tachypnea ... #Acute #Cough
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Differential Diagnosis Pulmonary ... Pleural effusion, Pneumonia ... Pleural effusion, Pulmonary ... , Intra-abdominal ... poisoning, DKA, Fever
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Non-Resolving Pneumonias ... yersinia/rats, Q fever ... Eosinophilic PNA (acute ... Others: - Pulmonary ... #NonResolving #Pneumonia
Eosinophilic Pneumonia
When to suspect Eosinophilic Pneumonia? Non-resolving pneumonia + BAL > 25% eosinophils + excluded more
Eosinophilic Pneumonia ... common diagnoses Acute ... tobacco hx - Fever ... Consolidations AKA "inverse pulmonary ... #diagnosis #pulmonary
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
Lung Diseases • Acute ... initiation of smoking; Fever ... brown sputum, fever ... Travel hx, food hx; Fever ... Lung #Diseases #pulmonary
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... e.g., CXR, CT, ultrasound ... Inflammation (e.g., fever ... procalcitonin) - Pulmonary ... #Pneumonia #Venn
CGD and Mulch Pneumonitis
This acute fulminant invasive fungal pneumonia in absence of iatrogenic or exogenous immunosuppression
Pneumonitis This acute ... invasive fungal pneumonia ... Lawn mowing High level ... dyspnea, hypoxia, fever ... and evidence of pulmonary