Simple balanitis is a diffuse inflammation that responds to treatment, whereas PIN is a persistent, localized, precancerous plaque that does not.
This is an acute inflammatory reaction to an allergen, which resolves upon withdrawal of the offending agent, unlike a persistent neoplastic plaque.
An eczematous patch is itchy and responds to topical steroids, whereas PIN is typically asymptomatic and unresponsive.
This is a specific clinical term for a velvety red plaque of PIN on the glans penis.
Penile LP is characterized by violaceous, annular, or lacy white papules and plaques, a different morphology than the red or white plaques of PIN.
Penile psoriasis presents as sharply demarcated, red plaques that will respond to psoriasis treatments, unlike PIN.
PIN is carcinoma in situ; it is distinguished from invasive SCC by being a flat or slightly raised plaque, whereas SCC is an indurated, thicker nodule or ulcer.
This is a benign condition of older, uncircumcised men, presenting as a shiny, orange-red patch, which can only be distinguished from PIN by biopsy.
This is distinguished by its characteristic porcelain-white, atrophic plaques that can cause scarring and phimosis.
