In medicine (dermatology),<unk>  (BD) is a sunlight-induced skin disease, classified either as an early noninvasive stage or intraepidermal form of squamous cell carcinoma which if left undiagnosed, untreated, or neglected has <10% chance of malignant transformation into invasive squamous cell carcinoma of the skin. It usually appears as a erythematous, scaly or crusty patch or plaque anywhere on the body but most commonly involves lower legs, with other possible sites of involvement to be head, neck, genitals, and skin folds. It is easily curable by various treatment options such as cryotherapy, curettage, cautery, photodynamic therapy, topical chemotherapy, radiotherapy, or excision of the lesion.
Bowen's disease
Bowen’s disease
Aguecheek disease
Grover's disease
Dent's disease
Darier's disease
Prosector's wart
Blount's disease