A condition of persons of any age, but particularly children with a genetic proclivity for allergic rhinitis and conjunctivitis, and allergic asthma.
An inflammatory disease characterized by lesions with arcuate, annular, and serpiginous outlines and by collarettes of scale on the inner margin of lesions that extend outward in centrifugal fashion, disappearing in months as a rule in the absence of treatment.
An inflammatory, i.e., granulomatous, process that usually takes the form of papules which in constellation often assume annular, arcuate, and serpiginous shapes.
Keratotic spikes that emerge from dilated ostia of infundibula and are equidistant from one another.
A granulomatous inflammatory process characterized clinically by closely-set, tiny, hypopigmented papules that have a predilection for the trunk, dorsa of the hands and sides of the finger, and the penis of children and young adults especially.