11 results
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... procedures - Infection ... Risks factor for HIV ... #hematology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Differential ... Weight loss - DDX ... Brucellosis - Viruses: HIV ... Effusions: - Hematologic ... #diagnosis #msk
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
- parvovirus, HIV ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup ... #differential #
Approach to Joint Pain

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

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... Parvovirus B19 • HIV ... #Joint #pain #Differential ... #Diagnosis #MSK ... #rheumatology #
Approach to Elevated Tryptase - Differential Diagnosis Framework

The DDx of elevated tryptase can be broken down
Elevated Tryptase - Differential ... Framework The DDx ... NSAIDs/Aspirin, IV ... • Parasitic infections ... #Diagnosis #hematology
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Polycythemia - Differential ... Better call hematology ... you’ll do a good workup ... #Polycythemia #Differential ... #hematology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... to exclude are infections ... CTD) • ANCA (Dx ... • HBV HCV • ... #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... to exclude are infections ... drug exposure or Dx ... #Diagnosis #Rheumatology
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
formed or don’t work ... Macrocytic anemia DDX ... Workup: • Complete ... blood count with differential ... Syndromes #diagnosis #hematology