12 results
Urinary Tract Tuberculosis - Contrast-enhanced computed tomography (CT) of the abdomen showed mild dilatation of the
computed tomography (CT ... the left renal pelvis ... excretory phase on CT ... AcidFastBacilli #Microscopy ... #NEJM
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Algorithm Red blood cells ... on urine microscopy ... disease • ... • Pauci-immune disease ... with polyangiitis/microscopic
Salmonella Aspiration on Microscopy

66 y/o male with history of coronary artery disease presents with abdominal pain.
Aspiration on Microscopy ... coronary artery disease ... CT abd/pelvis shows ... Salmonella #Aspiration #Microscopy
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
polyangiitis, Microscopic ... vasculitis, Behcet disease ... Goodpasture's Disease ... anti-ANCA ab, anti-GBM ... resolution chest CT
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in ... Diagnosis and Management ... involvement - CT ... of AFB by smear microscopy ... CMC_IM #Potts #Disease
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
life-threatening diseases ... Inflammatory eye disease ... Other tests: • CT ... seen on chest CT ... differential #diagnosis #management
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
• History of EBV ... Mediastinal mass) • CT ... number of sites of disease ... physical exam, CT ... hematology #oncology #management
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Activation of CD8 T cells ... Phagocytosis of blood cells ... • Autoimmune diseases ... Adult-onset Still disease ... Lymphohistiocytosis #diagnosis #management
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... concentration PET-CT ... increased IgG4+ cells ... IgG4 #Related #Disease ... #diagnosis #management
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
atherosclerotic disease ... most important diseases ... Multinucleated giant cells ... (PR3-ANCA)): Microscopic ... pain and GN Anti-GBM