12 results
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
(Erythrocytosis ... positive Family History ... Cyanosis without Pulmonary ... Apnea • Chronic Pulmonary ... #Hematology
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Polycythemia - Acquired Causes ... Hypoxia-driven: Cardiac/pulmonary ... disease, Smoking ... Hypoxia-independent: Post-renal ... Diagnosis #Algorithm #hematology
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
fraction < 20% Differential ... Diaqnoses: • Infectious ... hemopathies, solid cancers ... hepatitis • Pulmonary ... #rheumatology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Pulmonary Renal ... life-threatening diseases ... confirm DAH, r/o infection ... #differential # ... diagnosis #management #treatment
Clarkson’s Disease - Capillary leak syndrome
Epidemiology: Roughly 150 published cases, Median age 50 years, No sex
150 published cases ... , Median age 50 ... filling +++ (risk of pulmonary ... of infections) ... #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
progressing GN • New pulmonary ... and renal abnormalities ... tract, and often causes ... to exclude are infections ... #diagnosis #rheumatology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... , alcohol, cancer ... Hematologic malignancy ... History of immunosuppressive ... #differential #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... and renal abnormalities ... primary condition MEDIUM ... tract, and often causes ... #Diagnosis #Rheumatology
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
gland) biopsy • Histo ... : • 10%-15% Pulmonary ... Nephrogenic DI Hematologic ... Adenocarcinoma Treatment ... Sjogrens #Syndrome #Rheumatology
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... presentations and disease ... patient’s complete medical ... history - conduct ... output - Acute pulmonary