title: Cutaneous T-cell lymphoma with porokeratosis-like lesions.
abstract: We describe two black patients who had widespread, sharply demarcated, round, hyperpigmented or hypopigmented macules that clinically resembled disseminated superficial actinic porokeratosis (DSAP). One patient was known to have cutaneous T-cell lymphoma (CTCL), and the other patient had only the DSAP-like lesions. Histopathologic and immunohistochemical studies of the DSAP-like lesions revealed characteristic features of patch-phase CTCL. This unusual variant of patch-phase CTCL should be differentiated from DSAP and the hypopigmented variant of CTCL.
authors.affiliation: Division of Dermatology, Hahnemann University, Philadelphia, PA 19102.
authors.forename: W T
authors.initials: WT
authors.lastname: Hsu
authors.forename: M B
authors.initials: MB
authors.lastname: Toporcer
authors.forename: G R
authors.initials: GR
authors.lastname: Kantor
authors.forename: E C
authors.initials: EC
authors.lastname: Vonderheid
authors.forename: M E
authors.initials: ME
authors.lastname: Kadin
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007642:Keratosis / Q000209:etiology* / Q000473:pathology; D016410:Lymphoma, T-Cell, Cutaneous / Q000150:complications* / Q000473:pathology; D008297:Male; D010859:Pigmentation Disorders / Q000209:etiology* / Q000473:pathology; D012878:Skin Neoplasms / Q000150:complications* / Q000473:pathology