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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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 ... Treatment: Active ... 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 ... Treatment: Active ... Initiating Treatment ... Diagnosis #Management #Treatment
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
developing active infection ... infection • Recent ... viral infections ... Extrapulmonary infection ... LatentTB #ActiveTB #InfectiousDiseases
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Mycobacteria (NTM) Infections ... Mycobacterium tuberculosis ... infections • ... patients with typical tuberculosis ... differential #diagnosis #infectiousdiseases
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Mycobacterium tuberculosis ... Extrapulmonary tuberculosis ... #Infections #HIV ... differential #diagnosis #infectiousdiseases
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
and bacterial infections ... Pyogenic/focal infection ... • Disseminated tuberculosis ... Yellow fever • Tuberculous ... Brucellosis • Liver or lung
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... Antimicrobial treatment ... 80% sensitive Tuberculous ... - Hemorrhage, tuberculomas ... opportunistic #InfectiousDiseases
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... hemorrhage • Treatment ... continue antibiotic treatment ... several months of treatment ... causes #management #treatment
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
Histoplasmosis Treatment ... Mucormycosis Treatment ... change in the lungs ... nails, bronchi, lungs ... ) #Mycoses #InfectiousDiseases
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
e.g., HIV), EBV infection ... Etiology: - Infections ... Solid Tumors • Tuberculosis ... NonHodgkins #comparison #oncology