Ravi Singh K @rav7ks
1.1M 732 352
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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Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
Constitutional Syndromes ... Neutropenia - recurrent infections ... Idiopathic • Infections ... Treatment: ... #oncology #hematology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... lymphocytic interstitial lung ... autoimmune hemolytic anemia ... : • Nephrotic syndrome ... (Epstein-Barr syndrome
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
infections • ... Lady Windermere Syndrome ... : • Syndrome of ... Bone Marrow - Anemia ... differential #diagnosis #infectiousdiseases
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
petechiae) • Frequent infections ... • Parvovirus infection ... factor (GCSF) treatments ... marrow studies Treatment ... diagnosis #hematology #oncology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... Leukocytosis, anemia ... hemorrhage • Treatment ... continue antibiotic treatment ... several months of treatment
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
Prosthetic valves Lung ... Pneumonia • Other lung ... • Toxins • Infection ... • Tumor lysis syndrome ... polyangiitis • Behçet's syndrome
Acute Retroviral Syndrome
Acute Retroviral Syndrome is the symptomatic presentation of acute human immunodeficiency virus infection

 •
Acute Retroviral Syndrome ... Acute Retroviral Syndrome ... Acute Retroviral Syndrome ... enzymes ↑ • Mild anemia ... antibody test) Treatment
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
schistosomiasis • Pyemia ... disease • Behcet's syndrome ... • Hyper-IgD syndrome ... receptor-associated periodic syndrome ... Brucellosis • Liver or lung
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
- Ramsay Hunt syndrome ... Temporomandibular joint syndrome ... Nerve V: • TMJ syndrome ... subdural hematoma, lung ... Otalgia #Ear #Pain #Otology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Pneumonia: • 3 syndromes ... 100% of cases), anemia ... #Infections #HIV ... differential #diagnosis #infectiousdiseases