title: Acquired progressive lymphangioma as a flat erythematous patch on the abdominal wall of a child.
abstract: An erythematous patch was noted on the abdominal wall of an 8-year-old boy. The lesion showed a prolonged initial clinical course, followed by rapid later growth, finally reaching 3.7 X 7.0 cm in size over four years. Despite the harmless clinical appearance, the lesion was histologically characterized by tortuous vascular channels with some cellular atypia. Immunoperoxidase staining disclosed no factor VIII-related antigen or reaction to Ulex europaeus I lectin on tumor cells. There has been no recurrence three years after local excision. Although many features in our case resemble those reported in the literature under the term low-grade angiosarcoma, our preferred designation for such cases is acquired progressive lymphangioma, rather than angiosarcoma, because of their benign behavior.
authors.affiliation: Department of Dermatology, Tohoku University School of Medicine, Sendai, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Tadaki
authors.forename: S
authors.initials: S
authors.lastname: Aiba
authors.forename: S
authors.initials: S
authors.lastname: Masu
authors.forename: H
authors.initials: H
authors.lastname: Tagami
mesh_terms: D000009:Abdominal Muscles / Q000601:surgery; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008202:Lymphangioma / Q000473:pathology* / Q000601:surgery / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery / Q000648:ultrastructure