23 results
Warm vs Cold Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia:
 • Mechanism: IgG and Complement-mediated
 • Etiology:
Warm vs Cold Autoimmune ... Spherocytes • Treatment ... transient hemolysis • Treatment ... Plasmapheresis - VA Joint ... Hemolytic #Anemia #hematology
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... Atypical HUS, autoimmune ... S - Systemic Lupus ... #differential #hematology
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
Approach to Joint ... spondyloarthropathies, lupus ... Non-bloody: OA, avascular ... Like in this case ... #rheumatology #
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... usually IgG) (e.g. lupus ... idiopathic) - Autoimmune ... Extravascular #Causes ... differential #diagnosis #hematology
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... Avascular necrosis ... BrighamChiefs #Bone #Joint ... differential #diagnosis #causes ... #hematology
Causes of Neutropenia - Differential Diagnosis
Neonate:
 - Infection - by far the most common cause
 -
Causes of Neutropenia ... hypertension and/or drug treatment ... neutropenia in collagen vascular ... neutropenia in collagen vascular ... #hematology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
disease • Non-autoimmune ... rheumatologic diseases ... Arthritis: • Joint ... arthropathy • 90% joints ... Erythematosus #Diagnosis #Rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Autoimmune → Inflammation ... Internal derangement/Avascular ... weeks) Can Be Caused ... Rheumatologic Disease ... Diagnosis #MSK #rheumatology
Drug Induced Liver Injury (DILI) - Stepwise Diagnosis Algorithm
DILI suspicion
Features toxic aetiology: Skin involvement, Kidney injury,
non-essential drug/HDS treatments ... for alternative causes ... presentation: Hepatic vascular ... steatosis • Autoimmune ... Diagnosis #Algorithm #hepatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Disruptions in vascular ... Palpable Rash: - Autoimmune ... Vasculitis (lupus ... • Abdominal ultrasound