title: [Pseudosarcomatous chorangioma: A macroscopic and microscopic atypical tumor].
abstract: We report a case of an unusual chorangioma in a 26-year-old gravida 2, para 1 female. The clinical course was complicated by premature birth at 34 weeks' gestation. The baby presented with congenital cardiac and renal malformations. The tumor was 11 cm in size, separated from the main placental mass and exhibited atypical histologic characteristics such as fibromatous areas, high cellularity, nuclear atypia and high mitotic index. These histologic features must not be interpreted as malignancy.
authors.affiliation: Service d'anatomie et cytologie pathologiques, hôpital de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France. Electronic address: fabienne.allias@chu-lyon.fr.
authors.forename: Fabienne
authors.initials: F
authors.lastname: Allias
authors.affiliation: Service d'anatomie et cytologie pathologiques, hôpital de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France.
authors.forename: Frédérique
authors.initials: F
authors.lastname: Lebreton
authors.affiliation: Service d'anatomie et cytologie pathologiques, hôpital de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France.
authors.forename: Lucie
authors.initials: L
authors.lastname: Gaillot-Durand
authors.affiliation: Service d'anatomie et cytologie pathologiques, hôpital de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Jaouen
authors.affiliation: Centre de pathologie, 31, avenue du Général-de-Gaule, BP 32, 26201 Montélimar cedex, France.
authors.forename: Ruth
authors.initials: R
authors.lastname: Reis Borges
authors.affiliation: Service d'anatomie et cytologie pathologiques, hôpital de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France.
authors.forename: Mojgan
authors.initials: M
authors.lastname: Devouassoux-Shisheboran
mesh_terms: D000328:Adult; D058747:CHARGE Syndrome / Q000209:etiology*; D003937:Diagnosis, Differential; D005260:Female; D006222:Hamartoma / Q000175:diagnosis / Q000473:pathology*; D006330:Heart Defects, Congenital / Q000209:etiology; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007668:Kidney / Q000002:abnormalities; D007752:Obstetric Labor, Premature / Q000209:etiology; D010922:Placenta Diseases / Q000175:diagnosis / Q000473:pathology*; D011247:Pregnancy; D012509:Sarcoma / Q000175:diagnosis
keywords: Atypical; Atypique; Chorangioma; Chorangiome; Mitose; Mitosis; Placenta; Pseudosarcomateux; Pseudosarcomatous