Naturaly blastocyte implants in the uterine cavity.implantation of blastocyst in anyplace other than the endometrial lining of the uterine cavity is considered an ectopic pregnancy.more than 95% of ectopic pregnancies are tubal pregnancies.ovarian ectopic pregnancy is a rare case with an estimated incidence ranging from % 0.05-1 of the extra uterine pregnancies.if one blastocytes implant simult...

BACKGROUND Although the risk factors of ectopic pregnancy have been determined in previous studies, the main risk factors of ectopic pregnancy are different in various countries due to different cultural and social characteristics. Determination of main risk factors of ectopic pregnancy leads to a rapid diagnosis and an improvement in strategies for its prevention. The purpose of this study was...

Bilateral spontaneous tubal ectopic pregnancy is the rarest form of extra uterine pregnancy. The diagnosis is usually made intraoperatively and levels of serum BHCG and ultrasound has not been useful in the diagnosis of bilateral tubal ectopic pregnancy.A 33-year-old woman with 8 weeks amenorrhea and sever lower abdominal pain was admitted. A transvaginal pelvic ultrasound revealed left adnexal...

Serum progesterone measurement has been advocated as a diagnostic tool in the non-invasive diagnosis of ectopic pregnancy. To assess the accuracy of a single serum progesterone measurement in the diagnosis of ectopic pregnancy, a meta-analysis was performed incorporating 26 studies evaluating the performance of single serum progesterone measurement in the diagnosis of ectopic pregnancy. A disti...

Teratomas are bulky lesions that rarely occur in the head and neck regions.They are composed of tissues from all germ layers with varying degrees of differentiation. They arise from pluripotential stem cells and ectopic embryonic non-germ cells. The most common sites of occurrence in the head and neck are the cervical region and the nasopharynx. Three cases of these tumors are reported here...

pregnancy implantation within the scar of a previous cesarean delivery is one of the rarest locations for an ectopic pregnancy. early diagnosis of this condition with the use of ultrasound imaging allows for preserving the uterus and subsequent fertility. however, a delay in either diagnosis or treatment can lead to uterine rupture, hysterectomy and significant maternal morbidity. with increasi...