Distinguished by the presence of comedones (blackheads and whiteheads), which are absent in rosacea.
Characterized by comedones, papules, pustules, and cysts, typically affecting a younger age group, whereas rosacea lacks comedones.
Presents with a 'malar rash' that characteristically spares the nasolabial folds and is associated with systemic symptoms and positive ANA serology.
Often involves the eyelids and upper cheeks with significant pruritus and ill-defined erythema, related to environmental allergens.
Presents as well-demarcated, atrophic, scaly plaques with follicular plugging, often leading to scarring, which is not a feature of rosacea.
An exaggerated sunburn reaction in sun-exposed areas following systemic medication intake, with a clear history of a new photosensitizing drug.
Cause an acneiform eruption of monomorphic papules and pustules, but unlike rosacea, these are not associated with background erythema or telangiectasias.
A rare genodermatosis featuring a rosacea-like facial eruption but also characterized by pitted scars and keratotic papules on the trunk and limbs.
A form of cutaneous tuberculosis presenting as reddish-brown 'apple-jelly' nodules on diascopy (pressing with a glass slide).
Presents as solid, persistent facial edema and erythema, primarily affecting the upper half of the face, representing a severe, lymphedematous form of rosacea.
Characterized by monomorphic papules and pustules clustered around the mouth, nose, and eyes, with a classic zone of sparing around the vermilion border of the lips.
Caused by an overgrowth of Demodex mites, presenting with perifollicular scaling and a rough, sandpaper-like texture to the skin.
An itchy eruption of papules or plaques that appears hours to days after sun exposure and resolves without the persistent erythema of rosacea.
A descriptive term for eruptions that mimic rosacea but are caused by other factors, like topical steroids or other medications.
Can present with facial papules, but these are often reddish-brown or violaceous and firm, and biopsy shows non-caseating granulomas.
Distinguished by its greasy, yellowish scale and location in sebaceous areas like the nasolabial folds, eyebrows, and scalp, rather than the central facial erythema of rosacea.
Causes a rosacea-like eruption with prominent telangiectasias and atrophy, directly related to the application of topical corticosteroids.
Presents as annular or papulosquamous plaques in a photosensitive distribution, associated with positive anti-Ro/SSA antibodies.
An acute, painful erythema following excessive UV exposure, which resolves, unlike the chronic nature of rosacea.
An asymmetric, annular patch with a scaly, active border, confirmed by a positive KOH preparation, distinguishing it from the symmetric erythema of rosacea.
