title: Actinic reticuloid imitating Sézary syndrome.
abstract: Actinic reticuloid is a rare chronic idiopathic photosensitive dermatosis belonging to the spectrum of chronic actinic dermatitis and may be mistaken for cutaneous T-cell lymphoma. We report the case of an erythrodermic patient, initially diagnosed with Sézary syndrome, treated with chlorambucil and prednisolone. Later on, a photobiological study demonstrated photosensitivity to UVB, UVA, and visible light. The clinical picture, histological findings resembling lymphoma, and the results of the photobiological study established the diagnosis of actinic reticuloid. Currently the patient is avoiding sun exposure and being medicated with azathioprine and prednisolone, and is showing sustained improvement.
authors.affiliation: Serviço de Dermatologia, Hospital de Santa Maria-Centro Hospitalar Lisboa Norte, Lisbon, Portugal. pachecocas@hotmail.com
authors.forename: David
authors.initials: D
authors.lastname: Pacheco
authors.forename: Ana
authors.initials: A
authors.lastname: Fraga
authors.forename: Ana Rita
authors.initials: AR
authors.lastname: Travassos
authors.forename: Joana
authors.initials: J
authors.lastname: Antunes
authors.forename: Joaao
authors.initials: J
authors.lastname: Freitas
authors.forename: Luis
authors.initials: L
authors.lastname: Soares de Almeida
authors.forename: Paulo
authors.initials: P
authors.lastname: Filipe
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D010787:Photosensitivity Disorders / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D012751:Sezary Syndrome / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000175:diagnosis*