10 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Fever/Chills/Joint pain ... Intra-articulation fracture ... Effusions: - Hematologic ... #diagnosis #msk
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
- Differential ... Diagnosis Algorithm ... Ricketts - Diffuse Pain ... • Bone Marrow Disorder ... #Pathologic #MSK
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Approach to Joint Pain ... History: Is the pain ... #MSK #rheumatology ... #approach #workup ... #differential #
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
- Arthritis Differential ... Mechanical/degenerative disorders ... Joint #pain #Differential ... #Diagnosis #MSK ... #rheumatology #
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic Algorithm ... High-risk Features ... sulfa-drug - Skin pain ... #Differential # ... Ddxof
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Approach to Joint Pain ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup ... #differential #
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Petechial Rash - Differential ... Diagnosis Algorithm ... Vasculitis - Collagen disorders ... lesions • Severe pain ... deficiency Work
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... ) • Endocrine disorders ... syndrome Clinical Features ... : • Joint pain ... vein thrombosis Hematologic
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... metabolic or endocrine disorders ... , and low back pain ... RF (if clinical features ... #laboratory #workup
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
• Autoimmune disorders ... hemolytic anemia • Pain ... Hodgkin Lymphoma Workup ... Immunohistochemical studies (to differentiate ... classification #hematology