16 results
Causes of Nail Clubbing - Mnemonic 
Cyanotic Heart Disease, Cystic Fibrosis
Lung Cancer, Lung abscess 
Ulcerative Colitis
Causes of Nail Clubbing ... Mesothelioma Infective Endocarditis ... , Idiopathic Pulmonary ... Nails #Mnemonic #Differential ... #Causes #Diagnosis
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective endocarditis ... were classically listed ... #differential # ... diagnosis #causes ... #InfectiousDiseases
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura in severe cases ... submassive PE) POCUS ... #differential # ... diagnosis #signs ... #Lung #POCUS #ultrasound
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
pulmonary infection ... with underlying lung ... Mycobacterium #diagnosis ... #differential # ... infectiousdiseases
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Hemoptysis - Differential ... Diagnosis Framework ... regurgitation, Tricuspid endocarditis ... #Diagnosis #pulmonary ... #causes
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
POCUS lung exam ... Differential Bilat ... : Pulmonary edema ... Lung POCUS shows ... NOT definitively diagnose
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... Cerebral > Splenic, pulmonary ... Septic Emboli Cause ... Marantic (NTBE) Differential ... Diagnosis?
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain and Lung ... phenomena from endocarditis ... Infections #Concurrent #Differential ... #Diagnosis #causes ... #infectiousdiseases
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain and Lung ... phenomena from endocarditis ... Infections #Concurrent #Differential ... #Diagnosis #causes ... #infectiousdiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Culture-Negative Infective Endocarditis ... but important causes ... BCNIE Diagnostic ... #diagnosis #differential ... #workup #infectiousdiseases