13 results
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
drug reaction, infection ... organ-specific signs ... symptoms (eg, skin ... #Differential #diagnosis ... #hematology #eosinophilia
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... • The goal of diagnosing ... Tuberculin skin ... used to exclude pulmonary ... LatentTB #ActiveTB #InfectiousDiseases
Systemic Sclerosis (Scleroderma)
Multi-system autoimmune disease characterized by vasculopathy and progressive fibrosis of skin and internal organs
3
thickening Signs ... calcinosis • Pulmonary ... disease), PAH (pulmonary ... #diagnosis #signs ... #symptoms #testing
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
eliminated the infection ... negative tuberculin skin ... #InfectiousDiseases ... #Tuberculosis #Testing ... IGRA #Spectrum #Table
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
haemophilum • Tropical setting ... Hematologic malignancy ... Diagnosis Of NTM ... #differential #diagnosis ... #infectiousdiseases
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
osteomyelitis or skin ... Urinary antigen testing ... organism into the skin ... Mouth, throat, skin ... ) #Mycoses #InfectiousDiseases
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... gyratum repens • A skin ... Erythemas #comparison #table ... #differential #diagnosis ... #dermatology #compared
Primary Biliary Cirrhosis (PBC) - Summary

PBC Epidemiology:
 • Female:Male 9:1
 • Common European descent
 • Age:
failure PBC Signs ... Examination: • Skin ... Proximal limb muscle wasting ... fungal, viral infections ... #workup #hepatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... Vasculitis Differential Diagnosis ... to exclude are infections ... purpura: Strong sign ... #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... progressing GN • New pulmonary ... to exclude are infections ... purpura: strong sign ... #rheumatology #