10 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... Diagnosis #Radiology #Pulmonary ... #CTChest #LowAttenuation ... #Differential # ... Diagram #Comparison
AIDS-defining illnesses
 - Candidiasis of the esophagus, bronchi, trachea, or lungs [(but NOT the mouth (thrush)]
AIDS-defining illnesses ... tuberculosis, any site (pulmonary ... #AIDS #Defining ... #InfectiousDiseases ... Diagnosis #List #Differential
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Non-Hodgkin's Lymphoma - Comparison ... underarms, or chest ... involvement Differential ... Malignancies (eg CML ... #NonHodgkins #comparison
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
eg. allogeneic HSCT ... SOT, Advanced HIV ... /AIDS, CGD) Clinical ... presentations: • Pulmonary ... treatment #fungal #infectiousdiseases
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... CD4 < 200: CMV, HSV ... /- High res CT chest ... diagnosis #evaluation #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Infections in HIV ... - Differential ... #AIDS #pulmonary ... #differential # ... diagnosis #infectiousdiseases
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... Diagnosis: • HRCT ... high-resolution chest ... , CCP, ANCA • HIV ... #differential #
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
mucogenicum • HIV ... Advanced HIV (CD4 ... • Dyspnea, • Chest ... NTM #Infections #differential ... #diagnosis #infectiousdiseases
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
aches, joint pain, chest ... yeast • At risk: AIDS ... transplantation • MCC ... MC: CNS CSF: • ... ) #Mycoses #InfectiousDiseases
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
suspected) - CT chest ... (200–300 mL/h) ... IV bisphosphonates ... bispecifics, or HSCT ... renal failure, pulmonary