27 results
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Systemic Diseases ... (most common: lung ... (most common: lung ... , Aneurysm • Pancreas ... Differential #Diagnosis #causes
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... head and neck, pancreas ... biliary, renal, lung ... concentration PET-CT ... #diagnosis #management
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
and Management ... • Most common cause ... seen • Chest CT ... Management: • ... #differential #causes
Causes of Localized Lymphadenopathy - Differential Diagnosis Algorithm
Cervical:
 - Anterior
     • Infection
Causes of Localized ... • Kikuchi Disease ... , Mediastinum, Lungs ... Diagnosis #Algorithm #Causes ... #Hematology #Oncology
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... in Sickle Cell Disease ... Generally affects long ... Osteomyelitis / Septic Arthritis ... #hematology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status • Chronic lung ... status NTM Cause ... infections Lungs ... Hematologic malignancy ... Imaging, high res CT
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
Cervical spine arthritis ... Cricoarytenoid arthritis ... subdural hematoma, lung ... differentiate disease ... Otalgia #Ear #Pain #Otology
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
in literature (NEJM ... identifies 85 to 95% of cases ... (Cornelia NEJM ... day, followed by long ... Symptoms #Diagnosis #Management
Pulmonary Nodule
Evaluation is guided by nodule size & assessment of probability of malignancy. In addition is
diameter are called lung ... masses & should ... associated with lung ... coronary artery disease ... Management options