Zuber described different clinical stages of rosacea.
Facial Erythema
Other Findings
Stage
Term
occurs after minor stimulus ("easy irritation")
frequent blushing
I
pre-rosacea
transitory, involving midface
early telangiectasia
II
vascular
persistent and more extensive
increased telangiectasia; papules and pustules
III
associated with tissue proliferation such as rhinophyma
variable ocular inflammation
IV
tissue hyperplasia
where:
• Minimal or mild stimulus resulting in moderate to marked erythema = "easy irritation"
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Specialty: Dermatology, Otolaryngology
