title: [Spontaneous myospherulosis developing at contact with a mature cystic dysembryoma of the ovary. Pathogenetic discussion apropos of a case diagnosed by laparoscopic biopsy].
abstract: The author has reported a case of spontaneous myospherulosis which developed adjacent to a benign cystic ovarian teratoma which was discovered by routine ultrasound examination in a young patient admitted for spontaneous abortion. This ovarian cyst had not been aspirated before. This report demonstrates that myospherulosis can be induced spontaneously by necrosis of fatty tissues. Up to now, this lesion was considered iatrogenic. In this case, it resulted from a physical process similar to the emulsion phenomenon between intra-tissular free fatty materials and plasma. This process gives rise to sequestration of blood cells, in particular erythrocytes by free fatty materials with the formation of "bags of marbles". These saccular structures thus produce inflammatory changes with foreign body granuloma and pseudo-cystization.
authors.affiliation: Département d'Anatomie et de Cytologie Pathologiques, Hôpital Saint-Michel, Paris.
authors.forename: P N
authors.initials: PN
authors.lastname: Vuong
mesh_terms: D000273:Adipose Tissue / Q000473:pathology*; D000328:Adult; D001706:Biopsy / Q000379:methods; D003884:Dermoid Cyst / Q000150:complications / Q000473:pathology*; D005218:Fat Necrosis / Q000473:pathology*; D005260:Female; D006801:Humans; D009336:Necrosis / Q000473:pathology*; D010048:Ovarian Cysts / Q000453:epidemiology / Q000473:pathology*; D010053:Ovary / Q000473:pathology*
vernacular_title: Myosphérulose spontanée développée au contact d'un dysembryome kystique mature de l'ovaire. Discussion pathogénique à propos d'un cas, diagnostiqué par la cytoponction per-coelioscopique.