A general term for inflammation, which is often infectious or irritant-related and lacks the specific shiny, orange-red appearance of Zoon's.
Presents as serpiginous or annular, grayish-white plaques associated with reactive arthritis, a different morphology and systemic association.
An eczematous reaction to an irritant or allergen, which is typically pruritic and ill-defined, not a discrete, shiny plaque.
Presents with itching, scaling, and erythema, and lacks the well-demarcated, moist, shiny appearance of Zoon's balanitis.
A persistent, velvety red plaque that represents squamous cell carcinoma in situ and requires biopsy for diagnosis.
A well-demarcated, dusky erythematous plaque that recurs in the exact same spot upon re-exposure to a specific drug.
Presents as violaceous papules or annular plaques, often with a fine, lacy white pattern (Wickham's striae).
A precancerous lesion appearing as a persistent red or white plaque, which must be ruled out by biopsy.
Presents as well-demarcated, erythematous plaques, which may have a silvery scale if not in a moist area.
An infestation causing intense pruritus and may involve papules or burrows on the glans, but does not form a shiny plaque.
A firm, cord-like structure under the skin of the penile shaft, a different clinical finding from a surface plaque.
An invasive cancer that presents as an indurated, firm nodule or a non-healing ulcer.
Causes atrophic, white, 'cigarette paper'-like plaques and can lead to phimosis, a different color and texture than Zoon's balanitis.
