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AN OVARIAN MUCINOUS ADENOCARCINOMA ARISING FROM MATURE CYSTIC TERATOMA ASSOCIATED WITH RESPIRATORY TYPE TISSUE: A CASE REPORT
No full textMature cystic teratoma (dermoid cyst) is the most common benign
germ cell tumor of the ovary, accounting for approximately
30% of all ovarian tumors. Malignant transformation is rare; the
most frequent transformation reported is to squamous-cell carcinoma
in 80% of cases, whereas transformation to adenocarcinoma
is described in about 7% of cases.We report a case of malignant
transformation to mucinous adenocarcinoma arising fro
Transvaginal ultrasonography in women receiving emergency contraception
No full textOBJECTIVE:
To determine whether transvaginal ultrasonography improves evaluation of conception time in women seeking emergency contraception.
DESIGN:
Prospective study.
SETTING:
Obstetrics and Gynecology Department, Siena University, Siena, Italy.
PATIENT(S):
One hundred sixty-three women seeking postcoital contraception.
MAIN OUTCOME MEASURE(S):
Data on menstrual history and time of unprotected intercourse were recorded. Ultrasonographic variables evaluated were ovarian follicle or corpus luteum diameter, endometrial echopattern and thickness, and peritoneal fluid volume. Expected pregnancy rates were calculated according to the probability of conception as estimated from Dixon's table of data, based solely on anamnestic data, or from endometrial or ovarian findings on transvaginal ultrasonography.
RESULT(S):
According to the menstrual history (cut-off level < 0.03) we expected to find 7.6 pregnancies (7.9 in the high-risk group and 0.31 in the low-risk group). According to transvaginal ultrasonography (at the same cut-off), we expected 11.2 pregnancies (0.3 in the low-risk group and 10.9 in the high-risk group). No more than 7 pregnancies were observed, all of which occurred in the high-risk group as determined by transvaginal ultrasonography. In contrast, on the basis of anamnestic data, 4 of 7 pregnancies were in the high-risk group and 3 of 7 were in the low-risk group.
CONCLUSION(S):
Transvaginal ultrasonography allows timely definition of the fertile period and is a reliable method of computing the day of ovulation. It improves therapeutic options by allowing treatment of only women at high risk of conception
An ovarian mucinous adenocarcinoma arising from mature cystic teratoma associated with respiratory type tissue: a case report
No full textMature cystic teratoma (dermoid cyst) is the most common benign germ cell tumor of the ovary, accounting for approximately 30% of all ovarian tumors. Malignant transformation is rare; the most frequent transformation reported is to squamous-cell carcinoma in 80% of cases, whereas transformation to adenocarcinoma is described in about 7% of cases. We report a case of malignant transformation to mucinous adenocarcinoma arising from respiratory-like epithelium in a mature teratoma of the ovar
Steroid hormones [Esteroides en el embarazo]
No full textHuman placenta has a key role in the events cascade leading to the fetal-maternal adaptations to pregnancy, as well as to the onset of term and preterm labor. The final pathway of this cascade is represented by the secretion of steroid hormones, as placenta, decidua, pregnant myometrium, and the embryo/fetus serve as targets to steroid hormones. Indeed, steroid hormones represent the common final pathway of a complex placental network of interactions acting from implantation till delivery. Indeed, progesterone prepares the endometrium for implantation, inhibits uterine contractility, and prepares mammary glands for lactation; allopregnanolone is involved in the mood and adaptation to stress; estrogens affect uterine myometrial growth and enlargement, relaxation of pelvic ligaments, and myometrial contractility; cortisol is involved in the mechanism regulating fetal growth and adaptation to the extrauterine lige (i.e. fetal lung maturation), glucose metabolism and myometrial contractility. Steroid hormones in pregnancy may play a role in the regulation of maternal and fetal physiology during pregnancy, ranging from the control of placental anchoring to fetal growth, maturation and/or initiation of labor
Effect of gestational age on the accuracy of ultrasonographic estimation of fetal weight
No full text
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