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2003 SEP 4 - (NewsRx.com & NewsRx.net) -- Pulmonary emboli of chorionic villus origin can occur following abortion as well as in pregnancy.
According to a study from Japan, "Although pulmonary trophoblastic embolism is now considered a physiologic phenomenon of normal pregnancy, this phenomenon has not been demonstrated in a living asymptomatic patient. Recently we encountered a 26 yr old woman suspected of pulmonary embolism of villotrophoblastic tissues after therapeutic abortion. Although her serum beta-hCG was low, a computed tomography scan showed multiple nodules in both lungs.
"Histological examination of a nodule in a lung-biopsy specimen showed granulation tissue surrounding a hemorrhagic mass, within which were structures resembling degenerating chorionic villi. Immunohistochemical study on the patient lung nodule, and a second endometrial-curettage specimen, 6 control endometrial and tubal specimens containing degenerating chorionic villi, and 4 endometrial specimens containing viable chorionic villi were performed.
The patterns of immunostaining for cytokeratin, human chorionic gonadotropin, human placental lactogen, placental alkaline phosphatase, and inhibin-a of ...