9 results
IBD Mimics
Infectious - Always RULE OUT infection (CMV, C. diff esp.) obtain travel & exposures history:
Salmonella • Colon ... Hermansky-Pudlak syndrome, CVID ... (common variable ... • Colon inflammation ... changes without chronic
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... lung disease ... Chest CT: • Ground-glass ... and M panel Management ... Malignancies • Chronic
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
and Management ... infection • Most common ... pneumonia • Chronic ... seen • Chest CT ... Abscess Differential
Thumbprinting in Ischemic Colitis- Contrast-enhanced computed tomography of the abdomen, performed to evaluate the possibility of
complicated diverticular disease ... of the sigmoid colon ... inflammatory bowel disease ... clinical #radiology #CT ... thumbprinting #sign #NEJM
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
tightness Most Common ... in the adjacent lung ... of the affected lung ... high-resolution chest CT ... Bronchiectasis #pulmonary #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Diagnosis Framework Disease ... angioinvasive disease ... • CT: Halo sign ... Abdominal pain, chronic
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... , Pancreas, Gastric ... Marantic (NTBE) Differential ... Regurgitation • Colon ... Endocarditis #diagnosis #management
Immune Checkpoint Inhibitor-Mediated Colitis
Grade of Disease Severity:
 • G1: Increase < 4 BMs/day over baseline; mild
Inhibitor-Mediated Colitis ... Grade of Disease ... Endoscopy (Flex Sig or Colon ... Cross-sectional Imaging (MR/CT ... #diagnosis #management
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... Inflammatory Myopathies: Commonly ... , pancreas, stomach ... , colon, and lymphoma ... , colon, and lymphoma