ESSENTIALS OF DIAGNOSIS
A chronic disorder affecting the face.
Neurovascular component: erythema and telangiectasis and a tendency to flush easily.
Acneiform component: papules and pustules may be present.
Glandular component: sebaceous hyperplasia and fibrosis of affected areas (eg, rhinophyma).
Rosacea is a common condition that presents in adulthood. The pathogenesis of this chronic disorder is not known. Topical corticosteroids applied to the face can induce rosacea-like conditions (eFigure 6–98).
This eruption resembling rosacea occurred following topical use of a steroid cream. (Used, with permission, from S Goldstein, MD.)
Patients frequently report flushing or exacerbation of their rosacea due to heat, hot drinks, spicy food, sunlight, exercise, alcohol, emotions, or menopausal flushing. The cheeks, nose, chin, and ears—at times the entire face—may be affected. No comedones are seen. In its mildest form, erythema and telangiectasias are seen on the cheeks (eFigure 6–99). Inflammatory papules may be superimposed on this background and may evolve to pustules (Figure 6–32) (eFigure 6–100). Associated seborrhea may be found. Some patients complain of burning or stinging with episodes of flushing and extremely cosmetic-intolerant skin. Patients may have associated ophthalmic disease, including blepharitis, keratitis, and chalazion, which often requires topical or systemic antibiotic or immunosuppressive therapy.
Telangiectasias—rosacea. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.)
Acne rosacea: close-up of papules. Note the absence of comedones. This is not acne. This is papulopustular rosacea. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.)
Rosacea in a 34-year-old woman showing erythema, papules, and pustules covering much of the face. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley H. The Color Atlas of Family Medicine, 2nd ed. McGraw-Hill, 2013.)
Rosacea is distinguished from acne by the presence of the neurovascular component and the absence of comedones (eFigure 6–53). Lupus is often misdiagnosed, but the presence of pustules excludes that diagnosis.
Educating patients to avoid the factors they know to produce exacerbations is important. Patients should wear a broad-spectrum mineral-based sunscreen; zinc- or titanium-based sunscreens are ...