<unk>  is a cutaneous condition characterized by an<unk>  malignancy involving the digit between the nailbed and the distal interphalangeal joint spaces.
Aggressive digital papillary adenocarcinoma
Disseminated superficial actinic porokeratosis
Chemotherapy-induced acral erythema
Localized granuloma annulare
Chemotherapy-induced hyperpigmentation
Acquired perforating dermatosis
Chronic actinic dermatitis
Extramammary Paget's disease