Pelvic Endometriosis: Correlation of US and MRI With Laparoscopic Findings

Endometriosis

Endometriosis is classically defined as the presence of endometrial glands and stroma outside the uterine cavity and its musculature. The definition of deep endometriosis is based on anatomic assumptions that may prove erroneous. In fact, the term '' deep endometriosis '' should be reserved for lesions in the retroperitoneal tissue. For practical purposes, several reports included in the so-called deep endometriosis the infiltrative forms that involve vital structures such as the bowel, ureters, and bladder, as well as forms such as many rectovaginal lesions. For the term ''deep'' to apply, there should be ectopic endometrial tissue penetrating the peritoneum more than 5 mm in depth. The ectopic endometrium responds to hormonal stimulation with various degrees of cyclic hemorrhage which result in suggestive symptoms and appearances. A common symptom is infertility. Pelvic pain is a frequent complaint among patients with endometriosis. Such pain generally manifests as secondary dysmenorrhea, worsening primary dysmenorrhea, dyspareunia, or even noncyclic lower abdominal pain and backaches. The pain may be site-specific when endometriosis is found in unusual locations outside the pelvis. Diagnosis Physical examination and laparoscopic exploration may not allow diagnosis or prediction of the extension of deep pelvic endometriosis, especially in pelvic retroperitoneal sites. Transvaginal sonography is recommended for diagnosis of endometriomas and endometriosis of the bladder but its value for assessment of superficial peritoneal lesions, ovarian foci, and deep pelvic endometriosis is uncertain. MR imaging is now commonly used for diagnosis of endometriosis and provides a tremendous advantage over other methods of investigation, owing to the possibility of making a complete survey of the anterior and posterior compartments of the pelvis at one time. MRI is becoming a mainstay of preoperative diagnosis, in particular for diagnosis deep infiltrating endometriosis.

A prospective study including 30 Female patients of reproductive who were previously clinically diagnosed to have endometriotic lesions. these will be sent to our department to identify the extent of the lesions and clarify the exact location for proper treatment. All patients were evaluated with ultrasound and MRI. the sensitivity, specificity and diagnostic accuracy for both examination were calculated. Transvaginal ultrasound and MRI will be done in our Radiology department to all patients after signing an informed consent to be enrolled in the study. All our imaging results were finally compared to the laparoscopic results which are our gold standard.

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