Presents as a symmetric malar rash that spares the nasolabial folds and is associated with systemic symptoms.
Characterized by a photosensitive, violaceous (heliotrope) rash on the eyelids and Gottron's papules over the knuckles.
Causes atrophic, scarred plaques with follicular plugging, a very different morphology from the active border of tinea.
An acute, exaggerated sunburn reaction in a photosensitive distribution following ingestion of a specific medication.
An ill-defined, pruritic, erythematous, and scaly patch that is not typically annular.
A widespread herpes simplex infection superimposed on eczema, leading to monomorphic, 'punched-out' erosions.
An acute bacterial infection presenting as a raised, well-demarcated, tender, warm, erythematous plaque, often with systemic signs like fever.
Presents as grouped vesicles on an erythematous base that progress to crusts, not a scaly annular patch.
A bacterial infection distinguished by its classic honey-colored crusts.
Cutaneous tuberculosis that presents as reddish-brown 'apple-jelly' nodules on diascopy.
Recognized by its characteristic distribution of papules and pustules around the mouth, nose, and eyes, with sparing of the vermilion border.
An itchy papular or vesicular eruption that appears hours to days after sun exposure and resolves completely.
Presents as well-demarcated erythematous plaques with a silvery scale and a negative KOH prep.
A chronic condition of central facial erythema, telangiectasias, and papulopustules, lacking the annular, scaly border of tinea.
Presents as firm, reddish-brown papules or nodules (lupus pernio) and biopsy shows non-caseating granulomas.
Characterized by greasy, yellowish scale in the nasolabial folds and eyebrows, not an annular lesion.
A painful, vesicular eruption in a strict dermatomal distribution.
Presents as photosensitive, annular or papulosquamous plaques and is associated with positive Ro/SSA antibodies.
An acute, painful erythema of sun-exposed skin that resolves, unlike the persistent nature of tinea.
