31 results
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
- Differential Diagnosis ... Erdheim-Chester), Immune ... M.tuberculosis, M. bovis • Fungi ... #Differential #Diagnosis ... #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... With associated pulmonary ... involvement: Anti-GBM Disease ... #differential #diagnosis ... #algorithm #rheumatology
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
infections are caused ... impaired cellular immune ... presentations: • Pulmonary ... vori Infectious Diseases ... #fungal #infectiousdiseases
THE LIMPING OR NON-WEIGHT BEARING CHILD PATHWAY

RED FLAGS - In all cases there are specific
markers which
FLAGS - In all cases ... Rheumatology ... involvement Sepsis - Immuno-compromise ... Pathway #Child #Peds ... #Pediatrics #Diagnosis
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
that disrupts immune ... Others: Cellular immune ... Drugs, Unknown cause ... Treatment: • ... #summary #rheumatology
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
symptoms • Rheumatologic ... extrapulmonary disease ... or meningitic disease ... ) #Mycoses #InfectiousDiseases ... #Fungal #Diagnosis
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Bacterial, TB, NTM, Fungal ... Obstruction 6) Rheumatologic ... /Autoimmune diseae ... Bronchiectasis #pulmonary ... #diagnosis #differential
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
- Differential Diagnosis ... in 24h Airway disease ... Ebola, Dengue), Fungal ... Kaposi's sarcoma • Rheumatologic ... #pulmonary #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... hemorrhage • Treatment ... Prevotella • Fungal ... Lung #Abscess #pulmonary ... #differential #causes
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... inflammation • Pauci-immune ... Differential Diagnosis ... • Fungal infections ... #rheumatology