Review: Repro CIS Handout Flashcards
What is endometriosis?
Ectopic endometrial tissue
DDx of acute pelvic pain in a female
Ectopic pregnancy Appendicitis Pelvic inflammatory disease Adnexal torsion Ruptured corpus luteum Endometrioma rupture Adhesions (—> obstruction)
DDx of chronic pelvic pain in a female
Chronic PID Adhesions Mesonephroma Endosalpingosis Adenomyosis Interstitial cystitis Pelvic congestion syndrome Endometrioma
______, _______, and/or ______ are causes of chronic pelvic pain in females that can co-exist with endometriosis
Adenomyosis; interstitial cystitis; pelvic congestion syndrome
_______ = cause of chronic pelvic pain in a female in which only endometrial glands (no stroma) are present
Endosalpingiosis
_____________ are frequently the product of segmental muscle contraction that results from a viscerosomatic reflex and should prompt the search for visceral disease and dysfunction
Extended lumbar type II dysfunctions
In a patient with endometriosis, the abrupt increase in severity and radiation indicates a possible _____
Endometrioma rupture
T/F: hemorrhage due to rupture of endometriotic cysts with subsequent peritoneal irritation will lead to the production of reactive exudates
True
Ruptured ovarian endometriotic cysts can sometimes mimic ovarian malignancy because of the extremely elevated __________
Serum CA 125 concentration
What is the best imaging modality in a pt suspected of having hemoperitoneum due to endometrioma rupture?
CT scan w/contrast is better than pelvic sonogram or MRI
CT shows active arterial extravasation of IV contrast with a measured attenuation value higher than that of free or clotted blood indicative of need for prompt surgical intervention
Signs and symptoms of endometriosis
Dysmenorrhea Pelvic pain Menorrhagia Hormone-dependent Dyspareunia Lumbago Rectal pain Dyschezia Infertility Increased allergic reactions Positive family hx
MAY BE ASYMPTOMATIC!
T/F: the genetic predisposition for endometriosis is more consistent with polygenic and multifactorial inheritance than with a single mutant gene
True
What causes the pelvic pain associated with endometriosis?
Intrapelvic bleeding and periuterine adhesions
When is the best time to examine a pt with suspected endometriosis?
During early menses
Exam findings in pts with endometriosis
Pelvic tenderness
Nodules on bimanual exam — on uterosacral ligament and/or in posterior cul-de-sac
Decreased uterine mobility/retroversion
Tender/fixed nodular adnexal masses
Osteopathic findings — somatic dysfunction lumbar spine, chapmans points
Less common — hemorrhagic cysts observed on cervix
Besides CA-125, what other labs should be done in pt with suspected endometriosis?
Quantitative HCG — rule out pregnancy
UA and culture (if UTI is in DDx)
CBC
CMP
STD testing to r/o chlamydia and gonorrhea; consider cervical gram staining and culture
First imaging modality for the evaluation of abdominal and pelvic pain of unknown etiology
CT scan
[contrast this with US and MRI which are the primary imaging modalities for assessing women with suspected gynecologic pathologies]
What type of ultrasound is used to look at endometriomas — which will look like homogenous cysts
Transvaginal ultrasound
It is often very difficult to diagnose endometriosis without surgical confirmation. What are typical laparascopic and biopsy findings?
Visual lesions — black powder burns are classic finding while red/white lesions are non-classic
Biopsy histology shows endometrial glands and stroma
[note: poor correlation between clinical and surgical findings]
Potnetial complications of endometriosis
Progressively worsening course — implants spread to pelvis, GI tract, urinary tract, iliopsoas muscle, lumbar spine
Etiologies of endometriosis
Retrograde menstruation
Vascular/lymphatic dissemination
Coelomic metaplasia of multipotential cells in peritoneal cavity
Metaplastic
Extrauterine stem/progenitor cell (HSCs from bone marrow differentiate into endometrial tissue)
Presence of abnormal factors (proinflammatory factors, increased estrogen production by stromal cells, endometrioid cancer, clear cell ovarian cancer, gene mutations in PTEN, ARID1A, etc.)
Coelomic metaplasia of multipotential cells in peritoneal cavity is cited as a possible etiology of endometriosis. What is the coelom?
Cavity between splanchnic and somatic mesoderm in the embryo that forms the lining of the general body cavity in the adult
Derives from mesothelium. A single layer of flattened cells forms an epithelium that lines serous cavities; from which mullerian ducts and endometrium originate
Describe metaplastic changes as a potential etiology of endometriosis
Mesonephric remnants may undergo endometrial differentiation and give rise to ectopic endometrial tissue
Fate of mesonephros
mesonephros is an embryonic excretory organ; in a young embryo is well developed and briefly functional. In older embryo, undergoes regression. Becomes epididymis and ductus deferens in males