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Focal / Localized Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 - Infectious
Localized Hair Loss (Alopecia ... decalvans - Secondary ... areata • Secondary ... syphilis #HairLoss ... #Alopecia #Focal
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Hair Loss (Alopecia ... • Androgenetic alopecia ... decalvans - Secondary ... areata • Secondary ... Diffuse #Focal #HairLoss
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
Diffuse Hair Loss (Alopecia ... • Androgenetic alopecia ... facial hair) • Alopecia ... stress #Diffuse #HairLoss ... #Alopecia #dermatology
Causes of Primary and Secondary Amenorrhea - Differential Diagnosis Algorithm
Primary Amenorrhea - No onset of menarche
of Primary and Secondary ... by age 16 with secondary ... age 14 without secondary ... Central - Pituitary Secondary ... Obstruction #Primary #Secondary
Causes of Primary and Secondary (without Red Flags) Headaches - Differential Diagnosis Algorithm

#Primary #Secondary #Headaches #Neurology
of Primary and Secondary ... Algorithm #Primary #Secondary
Primary Dermatologic Nail Disorders - Differential Diagnosis Algorithm
Nail Plate - Pitting
 • Psoriasis
 • Alopecia Areata
Nail
Psoriasis • Alopecia
Abnormal Lipid Profiles - Differential Diagnosis Algorithm

Increased Cholesterol and Triglycerides 
 - Genetic Causes
Dysbetalipoproteinemia - Secondary ... Hypo-alphalippproteinemia - Secondary ... LDLr deficiency Secondary ... Deficiency - Secondary
Primary and Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Primary (Essential) (95%) - Onset between age
Primary and Secondary ... No features of secondary ... Hypertension Secondary ... Hypertension #Primary #Secondary
Morphology of Skin Lesions - Primary and Secondary - Description Algorithm
 • Primary Skin Lesion -
- Primary and Secondary ... • Secondary Skin ... SkinLesion #Primary #Secondary
Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Hypertension - BP > 140/90 (>130/80 for DM)
Hypertensive urgency
Secondary Causes ... 3+) Consider secondary ... Hypertension #HTN #Secondary