<unk> /NLD most frequently appears on the patient's shins, often on both legs, although it may also occur on forearms, hands, trunk, and, rarely, nipple, penis, and surgical sites. The lesions are often asymptomatic but may become tender and ulcerate when injured. The first symptom of<unk>  is often a "bruised" appearance (erythema) that is not necessarily associated with a known injury. The extent to which<unk>  is inherited is unknown.<unk> D appears as a hardened, raised area of the skin. The center of the affected area usually has a yellowish tint while the area surrounding it is a dark pink. It is possible for the affected area to spread or turn into an open sore. When this happens the patient is at greater risk of developing ulcers. If an injury to the skin occurs on the affected area, it may not heal properly or it will leave a dark scar.
Necrobiosis lipoidica
Cutaneous lupus mucinosis
Acne necrotica
Tuberculosis verrucosa cutis
Granuloma annulare
Vesiculobullous disease
Ichthyosis bullosa of Siemens
Cutaneous amoebiasis