title: Cutaneous pseudolymphoma in association with molluscum contagiosum.
abstract: Cutaneous pseudolymphomas have been defined as benign lymphocytic infiltrates of the skin that simulate cutaneous lymphoma clinically or histologically. The authors report on a 2-year-old boy with a lesion of molluscum contagiosum in which the inflammatory infiltrate that surrounded a cystlike structure containing molluscum bodies consisted of atypical hyperchromatic mononuclear cells with abundant mitotic figures, some of them atypical. Immunohistochemical investigation demonstrated that the infiltrate was predominantly composed of T lymphocytes. A previous report documented pseudoleukemia cutis associated with molluscum contagiosum, and this report expands the spectrum of histopathologic pseudomalignancies that may be seen in lesions of molluscum contagiosum.
authors.affiliation: Department of Pathology, Hospital Comarcal del Alto Deba, Mondragón, Guipuzcoa, Spain.
authors.forename: J
authors.initials: J
authors.lastname: de Diego
authors.forename: D
authors.initials: D
authors.lastname: Berridi
authors.forename: N
authors.initials: N
authors.lastname: Saracibar
authors.forename: L
authors.initials: L
authors.lastname: Requena
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D008976:Molluscum Contagiosum / Q000150:complications* / Q000473:pathology; D019310:Pseudolymphoma / Q000150:complications* / Q000473:pathology; D012867:Skin / Q000473:pathology / Q000648:ultrastructure; D012871:Skin Diseases / Q000150:complications* / Q000473:pathology