8 results
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Diagnosis Framework ... Examination: • Signs ... • Laboratory evaluation ... #Differential #Diagnosis ... #dermatology #Hairloss
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
areas -> Scaring alopecia ... hair follicles -> causes ... Livedo Reticularis, Vasculitis ... Manifestations #pathophysiology ... #diagnosis #signs
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... < 30 years - Aorta ... branches • GCA: - Aorta ... purpura: strong sign ... #rheumatology #
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
hair follicles -> Alopecia ... blood vessels (vasculitis ... inflammation tends to cause ... #signs #symptoms ... #diagnosis #ExtraArticular
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
- Differential Diagnosis ... atheroemboli) • Aorta ... 19 - PNH - Vasculitis ... Venous #Arterial #pathophysiology ... #hematology #differential
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
and Differential Diagnosis ... Approach (when evaluation ... renal bruit or signs ... Coarctation of aorta ... , Vasculitis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... < 30 years • Aorta ... Arteritis): • Aorta ... tract, and often causes ... #Rheumatology
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
systemic inflammatory vasculitis ... those coming off aorta ... systemic sx + signs ... = vasculitis vs ... GCA #Temporal #Signs