16 results
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... Palpable purpura, Hemorrhagic ... IgM deposits • Nodular ... #dermatology #rheumatology ... #differential #diagnosis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... red to purple, hemorrhagic ... • Secondary Causes ... #Differential #Diagnosis ... #hematology #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... tract, and often causes ... Syndrome: - Ocular ... Differential Diagnosis ... #rheumatology #
Transient Monocular Vision loss - Differential Diagnosis
Ischemia	
 - Large artery disease (atherothrombosis, embolus, dissection).
  -
- Differential Diagnosis ... optic neuropathy, vasculitis ... Caused by decreased ... Ocular causes - ... anterior chamber hemorrhage
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
- Differential Diagnosis ... Kaposi's sarcoma • Rheumatologic ... Autoimmune: ANCA-Assoc vasculitis ... Diffuse alveolar hemorrhage ... #pulmonary #causes
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... Differential Diagnosis ... nonspecific white and gray ... tract, and often causes ... #Rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... - Differential Diagnosis ... than 2 mm) of hemorrhage ... • Abdominal ultrasound ... #Algorithm #Causes
Scurvy (Vitamin C Deficiency) - Diagnosis and Management

Vitamin C is required for hydroxylation of proline residues
Deficiency) - Diagnosis ... mucocutaneous changes, ocular ... • Delusions Ocular ... , or any other cause ... Hypersensitivity vasculitis
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... rash (6.7%) • Hemorrhagic ... Differential Diagnosis ... dermatology #rash #diagnosis ... #rheumatology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... - Differential Diagnosis ... Abnormal Abdominal Ultrasound ... Abnormal Chest X-Ray ... #Hematology