14 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
a.k.a. extrinsic allergic ... ILD caused by inhalation ... Churg Strauss syndrome ... #diagnosis #differential ... #pulmonary #causes
Eosinophilia - Differential Diagnosis Algorithm
Idiopathic Eosinophilia
Primary Eosinophilia:
 • Primary hypereosinophilic syndrome
 • Eosinophilic Leukemia
 • MPN/MDS
- Differential Diagnosis ... GI, lung, skin), ... eosinophilia) • Infectious ... , Eosinophilic pneumonia ... IBD Stanford Internal
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Causes of Pleural ... Pneumonectomy • Trapped lung ... Urinothorax Exudate - Infectious ... : • Pneumonia ... #causes
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
to Eosinophilic Lung ... loss, malaise • Allergic ... Hypereosinophilic Syndrome ... , CNS, skin • Infectious ... #differential #diagnosis
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
antibiotics and avoid allergic ... Angioedema • Sweet syndrome ... Inflammatory carcinoma - Lung ... • Compartment syndrome ... #dermatology #skin
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... : Pneumonia • Autoimmune ... DDX - Other causes ... : • Nephrotic syndrome ... hypogammaglobulinemia #immunology #hematology
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
- Differential Diagnosis ... Causes: • Still's ... fever • Hyper-IgD ... Brucellosis • Liver or lung ... #Differential #Diagnosis
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
• Domestic and wild ... status NTM Cause ... Lady Windermere Syndrome ... : • Syndrome of ... Hematologic malignancy
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
general feeling of ill ... Causes: - Idiopathic ... , breast CA - Hematologic ... - Allergic contact ... #diagnosis #dermatology
Hypereosinophilia Syndrome (HES) - Diagnosis and Management
Definition: An absolute eosinophil count (AEC) greater than 1500 and
eosinophil count (AEC ... eosinophilia Secondary Causes ... : - Allergic disorders ... hypersensitivity - Infection ... #hematology #differential