Can present as linear streaks of intensely itchy vesicles and erythema where a plant (like poison ivy) has brushed against the skin.
A parasitic infection from hookworm larvae, causing an intensely pruritic, serpiginous (snake-like), erythematous, raised linear track.
A form of physical urticaria where stroking the skin causes a transient, linear, raised wheal in the exact shape of the stroke.
A congenital hamartoma of the epidermis, often presenting as a linear, verrucous (wart-like), hyperpigmented plaque that follows Blaschko's lines.
A specific type of linear epidermal nevus that is intensely pruritic and erythematous (Inflammatory Linear Verrucous Epidermal Nevus).
A genetic disorder with four stages, the first of which is a linear or whorled pattern of inflammatory vesicles and bullae.
Presents as an immediate, painful, linear, or tentacle-patterned urticarial or vesicular eruption where the nematocysts have touched the skin.
A self-limiting eruption of small, pink, lichenoid papules that form a continuous or interrupted linear band along Blaschko's lines.
A segmental mosaic form of Darier's disease with greasy, crusted, keratotic papules arranged in a linear band.
A variant of Gorlin syndrome where multiple basal cell carcinomas and other features appear in a linear, Blaschkoid distribution.
A congenital hamartoma of the epidermis, presenting as a linear, verrucous (wart-like), hyperpigmented plaque that follows Blaschko's lines.
Lichen planus papules that are arranged in a linear configuration, often following a scratch (Koebner phenomenon).
A form of localized scleroderma presenting as a linear band of hardened, indurated, and often atrophic or hyperpigmented skin, which can cause underlying tissue loss.
A variant of porokeratosis where annular plaques with a distinct, thread-like keratotic border are arranged in a linear pattern.
A rare presentation of psoriasis where typical erythematous, scaly plaques develop in a linear distribution, often along Blaschko's lines.
A phototoxic reaction from contact with certain plants (like lime or celery) plus sunlight, causing bizarre, linear or streaky erythema, blisters, and hyperpigmentation.
A congenital hamartoma of sebaceous glands, usually on the scalp, that can present as a linear, yellowish, waxy, hairless plaque.
A form of neurofibromatosis where cafe-au-lait macules and/or neurofibromas are confined to a single segment of the body.
A rare presentation of psoriasis where typical erythematous, scaly plaques develop in a unilateral, segmental, or dermatomal distribution.
Reactivation of the varicella-zoster virus, causing a painful, unilateral eruption of vesicles in a band-like, dermatomal distribution.
Linear bands of atrophic skin ('stretch marks') caused by rapid stretching of the skin, which begin as red or purple and mature into white lines.
Segmental vitiligo presents as a unilateral, linear, or band-like area of depigmentation in a dermatomal pattern.
