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

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
IBD, Whipple's disease ... , Lyme disease, ... Vasculitis (e.g. ... #differential #diagnosis ... #rheumatology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential Diagnosis ... ): SS, SC, SE, Sβ ... cardiac valve, vasculitis ... #workup #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 ... erythematosus #signs ... #symptoms #diagnosis
Common RBC Inclusions and Associations
 • Howell Jolly Bodies: Hyposplenism, Asplenism, Severe hemolytic anemia
 • Heinz
, Hemolytic anemia ... : Hemoglobin H disease ... , Sickle cell, MDS ... Inclusions #Bodies #diagnosis ... #hematology
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
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
, MDS, Chemotherapy ... Microangiopathic Hemolytic ... Cold autoimmune hemolytic ... #differential #diagnosis ... #hematology #microscopy
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
- Differential Diagnosis ... ANCA associated vasculitis ... erythematosus (SLE ... #Differential #Diagnosis ... #rheumatology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential Diagnosis ... , CKD • Hemolytic ... Non-megaloblastic: Liver disease ... Reticulocytosis, MDS ... #hematology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... Secondary: CTD: SLE ... : • Temporal arteritis ... : • Behcet Disease ... differential #diagnosis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... DIC/TTP/HUS - Hemolytic ... anemia - Splenomegaly ... - CTD (SLE) ... #hematology #rheumatology