5 results
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
) - General (Diffuse ... Diagnosis Algorithm ... contraceptives • Hyperthyroid ... Differential #Diagnosis #Algorithm ... #causes
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
of Patients for Thyroid ... high; in some cases ... scan with focal ... disease course #hypothyroid ... #hyperthyroid #
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Localized / Focal ... Traction alopecia Diffuse ... Scaling, pustules, crusts ... or erythema and local ... deficiency • Thyroid
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
Diffuse Hair Loss ... Differential Diagnosis Algorithm ... contraceptives • Hyperthyroid ... Psychological stress #Diffuse ... #causes
Nonscarring Alopecias: Clinical features of the most common types
Patterned hair loss:
 - Age: puberty or older
types Patterned hair ... iron deficiency, thyroid ... patches; rarely diffuse ... alopecia in 5% of cases ... area of scalp; focal