The Facial Angiofibroma Severity Index (FASI) can be used to evaluate a patient with facial angiofibromas before and after treatment.
Patient selection: facial angiofibromas (which may be associated with tuberous sclerosis)
Parameters:
(1) erythema
(2) size
(3) extension
Parameter
Finding
Points
erythema
normal skin color
0
light red
1
red
2
dark red or purple
3
size
< 5 mm (small)
>= 5 mm (large)
confluent
extension
< 50% of cheek area
>= 50% of cheek area
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 3
• maximum score: 9
• The higher the score the more severe the condition.
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Specialty: Otolaryngology
