39 results
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Spondyloarthropathies, SLE ... retinal exudates) - SLE ... nodules - RA, SLE ... Lyme disease, Vasculitis ... differential #diagnosis #rheumatology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Megakaryopoiesis • Aplastic Anemia ... Autoimmune • ITP • SLE ... HUS • DIC • Vasculitis ... Algorithm #Causes #Hematology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Butterfly rash, Vasculitis ... of hip (rare), Arthritis ... ) Blood (75%): Anemia ... Leucopenia/lymphopenia, Thrombocytopenia ... symptoms #diagnosis #rheumatology
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... large vessels - Arteritis ... - Takayasu arteritis ... dermatomyositis #Size #Classification ... #Diagnosis #Rheumatology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Non-Infectious Aortitis: • Vasculitides ... : Giant Cell Arteritis ... ANCA associated vasculitis ... erythematosus (SLE ... Differential #Diagnosis #rheumatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Malar rash • SLE ... Hypersensitivity vasculitis ... IBD • RA • SLE ... Antiphospholipid-antibody syndrome • Vasculitis ... differential #diagnosis #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
inflammation • Thrombocytopenia ... - Hemolytic anemia ... Splenomegaly - CTD (SLE ... Associated - SLE ... #rheumatology #
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... Secondary: CTD: SLE ... : • Temporal arteritis ... • Takayasu's arteritis ... #dermatology #rheumatology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... genotypes): SS, SC, SE ... Schistocytes, thrombocytopenia ... cardiac valve, vasculitis ... Diagnosis #Algorithm #workup
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... test, ANA (e.g., SLE ... changes), high MCV anemia ... Diagnosis #Causes #Workup ... #hematology