Tubal ectopic pregnancy associated with an adenomatoid tumor

Pathology International
T InoueM Koono

Abstract

We present a case of coexistence of an ectopic pregnancy and an adenomatoid tumor in the same fallopian tube. The adenomatoid tumor is the most common benign neoplasm of the fallopian tube, and the vast majority of ectopic pregnancies occur in the fallopian tube. However, coexistence of these two conditions is extremely rare, and there has been only one previously reported case in the English literature. In the present case, the placental tissue, consisting of chorionic villi and decidua, was present in the ampulla, and the adenomatoid tumor was found in the myosalpinx, just proximal to the implantation site, replacing a large part of the myosalpinx. The close spatial relationship of these two lesions suggests that an adenomatoid tumor could have interfered with transportation of the fertilized ovum through the tube, possibly via impaired contractile activity of the myosalpinx, and consequently caused the ectopic tubal pregnancy.

References

Jan 1, 1978·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·R CarapetoA Matilla
May 1, 1979·American Journal of Obstetrics and Gynecology·O A MooreC Udoffia
Mar 1, 1987·Clinical Obstetrics and Gynecology·J B Russell
Mar 1, 1987·Clinical Obstetrics and Gynecology·M O Pulkkinen, A Talo
Dec 15, 1969·American Journal of Obstetrics and Gynecology· Niles, J F Clark

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Citations

Jan 7, 2004·The American Journal of Surgical Pathology·Jose Antonio PlazaSaul Suster
Aug 24, 2010·Journal of Minimally Invasive Gynecology·Lawrence WerlinBram H Goldstein
Jul 6, 2010·The Journal of Obstetrics and Gynaecology Research·Santosh Kumar Mondal
Jun 1, 2014·Journal of Minimally Invasive Gynecology·Aki MiyasakaTomoyuki Fujii

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