Ravi Singh K @rav7ks
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Academic Hospitalist and Program Director @SinaiBmoreIMRes, Medicine clerkship director GW School of Medicine and Health Sciences RMC at Sinai, Clinical reasoning,Simulation and POCUS enthusiast - https://twitter.com/rav7ks
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Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... hemorrhage • Treatment ... continue antibiotic treatment ... several months of treatment ... causes #management #treatment
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
of interstitial lung ... Diagnosis: • Lung ... other processes Workup ... strep, HIV • CTD workup ... Organizing Pneumonia Treatment
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status • Chronic lung ... infections Lungs ... to NTM: Chronic lung ... - Cough and lung ... differential #diagnosis #infectiousdiseases
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... macrophages in HIV • Lung ... cough, myalgia • Lung ... Microsporidium #Lung ... differential #diagnosis #infectiousdiseases
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Upper Lobe Lung ... Etiology: Lung ... apices of the lung ... CO2 & pH in the lung ... Silicosis - Coal worker
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
affecting the lungs ... • Progressive lung ... Tuberculosis Treatment ... Initiating Treatment ... Diagnosis #Management #Treatment
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
affecting the lungs ... • Progressive lung ... Tuberculosis Treatment ... Initiating Treatment ... Diagnosis #Management #Treatment
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Testing #Diagnosis #Workup ... LatentTB #ActiveTB #InfectiousDiseases
Dysphagia - Differential Diagnosis Framework

Symptom | Diagnosis
• Solid-food dysphagia present for months to years | Mechanical
disorder URGENT WORKUP ... disorder → EGD Treatment ... gastroenterology #workup
Chronic Lymphocytic Leukemia - Summary

Cancer affecting lymphocytes/Mature B cell neoplasm
 • Lymphocytes accumulate in large numbers
microglobulin Treatment ... Leukemia #diagnosis #workup