Adenomyosis - wikipedia Adenomyosis Adenomyosis Adenomyosis uteri seen during laparoscopy : soft and enlarged uterus ; the blue spots represent subserous endometriosis. Classification and external resources Specialty Gynecology ICD - 10 N80. 0 ICD - 9 - CM 617.0 OMIM 600458 DiseasesDB 250 MedlinePlus 001513 eMedicine radio / 737 MeSH D004715 ( edit on Wikidata ) Adenomyosis is a gynecologic medical condition characterized by the abnormal presence of endometrial tissue ( the inner lining of the uterus ) within the myometrium ( the thick, muscular layer of the uterus ). In contrast, when endometrial tissue is present entirely outside the uterus, it represents a similar but distinct medical condition called endometriosis. The two conditions are found together in many cases, but often occur independently. Before being recognized as its own condition, adenomyosis used to be called endometriosis interna. Additionally, the less - commonly used term `` adenomyometritis '' is a more specific name for the condition, specifying involvement of the uterus. The condition is typically found in women between the ages of 35 and 50 but can also be present in younger women. Patients with adenomyosis often present with painful and / or profuse menses ( dysmenorrhea & menorrhagia, respectively ). Other possible symptoms are pain during sexual intercourse, chronic pelvic pain and irritation of the urinary bladder. In adenomyosis, basal endometrium penetrates into hyperplastic myometrial fibers. Therefore, unlike functional layer, basal layer does not undergo typical cyclic changes with menstrual cycle. Adenomyosis may involve the uterus focally, creating an adenomyoma. With diffuse involvement, the uterus becomes bulky and heavier. Contents 1 Signs and symptoms 2 Causes 3 Diagnosis 3.1 Pathology 3.2 Imaging 3.2. 1 Transvaginal ultrasonography 3.2. 2 Magnetic resonance imaging 4 Treatment 4.1 Medications 4.1. 1 Hormones and hormone modulators 4.2 Surgery 4.2. 1 Uterine - sparing procedures 4.2. 2 Endometrial ablation and resection 4.2. 3 Non-uterine - sparing procedures 5 Prognosis 5.1 Fertility 6 Etymology 7 See also 8 References 9 External links Signs and symptoms Adenomyosis can vary widely in the type and severity of symptoms that it causes, ranging from being entirely asymptomatic 33 % of the time to being a severe and debilitating condition in some cases. Women with adenomyosis typically first report symptoms when they are between 40 and 50, but symptoms can occur in younger women. Symptoms and the estimated percent affected may include : Chronic pelvic pain ( 77 % ) Heavy menstrual bleeding ( 40 - 60 % ), which is more common with in women with deeper adenomyosis. Blood loss may be significant enough to cause anemia, with associated symptoms of fatigue, dizziness, and moodiness. Abnormal uterine bleeding Painful cramping menstruation ( 15 - 30 % ) Painful vaginal intercourse ( 7 % ) A ' bearing ' down feeling Pressure on bladder Dragging sensation down thighs and legs Clinical signs of adenomyosis may include : Uterine enlargement ( 30 % ), which in turn can lead to symptoms of pelvic fullness. Tender uterus Infertility or sub-fertility ( 11 - 12 % ) - In addition, adenomyosis is associated with an increased incidence of preterm labour and premature rupture of membranes. Women with adenomyosis are also more likely to have other uterine conditions, including : Uterine fibroids ( 50 % ) Endometriosis ( 11 % ) Endometrial polyp ( 7 % ) Causes The cause of adenomyosis is unknown, although it has been associated with any sort of uterine trauma that may break the barrier between the endometrium and myometrium, known as the junctional zone, such as a caesarean section, surgical pregnancy termination, and any pregnancy. It can be linked with endometriosis, but studies looking into similarities and differences between these two conditions have conflicting results. The pathogenesis of adenomyosis still remains unclear, but the functioning of the inner myometrium, also called the junction zone ( JZ ), is believed to play a major role in the development of adenomyosis. It is also a matter of discussion whether the link between reproductive disorders and major obstetrical disorders also lies here. Parity, age, and previous uterine abrasion increase the risk of adenomyosis. Hormonal factors such as local hyperestrogenism and elevated levels of s - prolactin as well as autoimmune factors have also been identified as possible risk factors. As both the myometrium and stroma in an adenomyosis affected uterus show significant differences from those of a non-affected uterus, a complex origin that includes multifactorial changes on both genetic and biochemical levels is likely. The tissue injury and repair ( TIAR ) theory is now widely accepted and suggests that uterine hyperperistalsis ( i.e., increased peristalsis ), during early periods of reproductive life will induce micro-injury at the endometrial - myometrial interface ( EMI ) region. That again leads to elevation of local estrogen in order to heal the damage. At the same time, estrogen treatment will increase uterine peristalsis again, leading to a vicious circle and a chain of biological alterations essential for the development of adenomyosis. Iatrogenic injury of the junctional zone or physiological damages due to placental implantation most likely results in the same pathological cascade. This also explains that adenomyosis often gets more severe after each pregnancy and childbirth, while endometriosis will ameliorate. Diagnosis Pathology Cross section through the wall of a hysterectomy specimen of a 30 - year - old woman who reported chronic pelvic pain and abnormal uterine bleeding. The endometrial surface is at the top of the image, and the serosa is at the bottom. The gold - standard method to definitively diagnose adenomyosis is through a pathologist microscopically examining small tissue samples of the uterus. These tissue samples can come from a uterine biopsy or directly following a hysterectomy ( surgery to remove the uterus ). Uterine biopsies can be obtained by either a laparoscopic procedure through the abdomen or hysteroscopy through the vagina and cervix. The diagnosis is established when the pathologist can find invading clusters of endometrial tissue within the myometrium. Several diagnostic criterion can be used, but typically they require either the endometrial tissue to have invaded greater than 2 % of the myometrium, or a minimum depth of invasion such as 1 -- 4 mm. Histopathological image of uterine adenomyosis observed in hysterectomy specimen. Hematoxylin & eosin stain. Imaging Adenomyosis can vary widely in the extent and location of its invasion within the uterus. As a result, there are no established pathognomonic features to allow for a definitive diagnosis of adenomyosis through non-invasive imaging. Nevertheless, non-invasive imaging techniques such as transvaginal ultrasonography ( TVUS ) and magnetic resonance imaging ( MRI ) can both be used to strongly suggest the diagnosis of adenomyosis, guide treatment options, and monitor response to treatment. Indeed, TVUS and MRI are the only two practical means available to establish a pre-surgical diagnosis. Transvaginal ultrasonography Transvaginal ultrasound of the uterus, showing the endometrium as a hyperechoic ( brighter ) area in the middle, with linear striations extending upwards from it. Transvaginal ultrasonography is a cheap and readily available imaging test that is typically used early during the evaluation of gynecologic symptoms. Ultrasound imaging, like MRI, does not use radiation and is safe for examination of the pelvis and female reproductive organs. Overall, it is estimated that transvaginal ultrasonography has a sensitivity of 79 % and specificity of 85 % for the detection of adenomyosis. Common transvaginal ultrasound findings in patients with adenomyosis include the following : globular, enlarged, and / or asymmetric uterus abnormally dense or especially varied density within the myometrium myometrial cysts - pockets of fluid within the smooth muscle of the uterus linear, acoustic shadowing without presence of a uterine fibroid echogenic linear striations - bright lines or stripes anterior / posterior wall asymmetry diffuse spread of small vessels within the myometrium Less common findings : Lack of contour abnormality Absence of mass effect Ill - defined margins between a normal and abnormal myometrium The power Doppler or Doppler ultrasonography function can be used during transvaginal ultrasonography to help differentiate adenomyomas from uterine fibroids. This is because uterine fibroids typically have blood vessels circling the fibroid 's capsule. In contrast, adenomyomas are characterized by widespread blood vessels within the lesion. Doppler ultrasonography also serves to differentiate the static fluid within myometrial cysts from flowing blood within vessels. The junction zone ( JZ ), or a small distinct hormone - dependent region at the endometrial - myometrial interface, may be assessed by three - dimensional transvaginal ultrasound ( 3D TVUS ) and MRI. Features of adenomyosis are disruption, thickening, enlargement or invasion of the junctional zone. Sagital MRI of a woman 's pelvis showing a uterus with adenomyosis in the posterior wall. Gross enlargement of the posterior wall is noted, with many foci of hyperintensity. Magnetic resonance imaging Magnetic resonance imaging ( MRI ) provides slightly better diagnostic capability compared to TVUS, due to the increased ability of MRI to differentiate objectively between different types of soft tissue. This is possible with MRI 's higher spatial and contrast resolution. Overall, it is estimated that MRI has a sensitivity of 74 % and specificity of 91 % for the detection of adenomyosis. Diagnosis through MRI focuses predominately upon investigating the junctional zone. The uterus will have a thickened junctional zone with darker / diminished signal on both T1 and T2 weighted sequences. Three objective measures of the junctional zone can be used to diagnose adenomyosis. A thickness of the junctional zone greater than 8 -- 12 mm. Less than 8 mm is normal. A junctional zone width being greater than 40 % of the width of the myometrium. Variability in the width of the junctional zone being greater than 5 mm. Interspersed within the thickened, darker signal of the junctional zone, one will often see foci of hyperintensity ( bright spots ) on the T2 weighted scans representing small cystically dilatated glands or more acute sites of microhemorrhage. MRI is limited by other factors, but not by calcified uterine fibroids ( as is ultrasound ). In particular, MRI is better able to differentiate adenomyosis from multiple small uterine fibroids. Treatment Adenomyosis can only be cured definitively with surgical removal of the uterus. As adenomyosis is responsive to reproductive hormones, it reasonably abates following menopause when these hormones decrease. In women in their reproductive years, adenomyosis can typically be managed with the goals to provide pain relief, to restrict progression of the process, and to reduce significant menstrual bleeding. Medications NSAIDs : Nonsterioidal anti-inflammatory drugs, such as ibuprofen and naproxen, are commonly used in conjunction with other therapies for pain relief. NSAIDs inhibit the production of prostaglandins by decreasing the activity of the enzyme cyclooxygenase. Prostaglandins have been shown to be primarily responsible for dysmenorrhea or the cramping pelvic pain associated with menses. Hormones and hormone modulators Levonorgestrel - releasing intrauterine devices or hormonal IUDs, such as the Mirena, are an effective treatment for adenomyosis. They reduce symptoms by causing decidualization of the endometrium, reducing or eliminating menstrual flow. Additionally, by helping downregulate estrogen receptors, hormonal IUDs shrink the clusters of endometrial tissue within the myometrium. This leads to reduced menstrual blood flow, helps the uterus contract more properly, and helps to reduce the menstrual pain. The use of hormonal IUDs in patients with adenomyosis have been proven to reduce menstrual bleeding, improve anemia and iron levels, reduce pain, and even result in an improvement of adenomyosis with a smaller uterus on medical imaging. At least in the short term, patients who can tolerate hormonal IUDs for the treatment of adenomyosis result in equivalent improvement of symptoms and better quality - of - life and social well - being as compared to women who undergo a hysterectomy. Hormonal IUDs are particularly well suited for individuals needing effective treatment of their adenomyosis while still maintaining future fertility potential. The most common negative side - effect of hormonal IUDs is irregular menstrual bleeding or spotting. Oral contraceptives reduce the menstrual pain and bleeding associated with adenomyosis. This may require taking continuous hormone therapy to reducing or eliminating menstrual flow. Oral contraceptives may even lead to short - term regression of adenomyosis. Progesterone or Progestins : Progesterone counteracts estrogen and inhibits the growth of endometrial tissue. Such therapy can reduce or eliminate menstruation in a controlled and reversible fashion. Progestins are chemical variants of natural progesterone. Gonadotropin - releasing hormone ( GnRH ) agonists and danazol have been tried in order to relieve adenomyosis related symptoms and show some effect, but the studies are few in number, mainly with a retrospective study design and have small sample sizes. Long - time use of GnRH - analogues is often associated with heavy side effects, loss of bone density and increased risk of cardiovascular events, and therefore not feasible for young women. Furthermore, all present treatment options are irrelevant options for women trying to conceive. Exogenous progestogenic treatments have been found to be ineffective. In IVF - settings long down - regulation prior to IVF might have a positive effect on pregnancy rates. Surgery Broadly speaking, surgical management of adenomyosis is split into two categories : uterine - sparing and non-uterine - sparing procedures. Uterine - sparing procedures are surgical operations that do not include surgical removal of the uterus. Some uterine - sparing procedures have the benefit of improving fertility or retaining the ability to carry a pregnancy to term. In contrast, some uterine - sparing procedures worsen fertility or even result in complete sterility. The impact of each procedure on a woman 's fertility is of particular concern and typically guides the selection. Non-uterine - sparing procedures, by definition, include surgical removal of the uterus and consequently they will all result in complete sterility. Uterine - sparing procedures Uterine artery embolization ( UAE ) : In this minimally - invasive procedure, doctors intentionally block two large arteries that supply the uterus, called the uterine arteries. This is performed in order to dramatically reduce the blood supply to the uterus. By doing so, there is insufficient blood and thus oxygen present for the adenomyosis to develop and spread. 57 - 75 % of women who undergo UAE for adenomyosis typically report long - term improvement in their menstrual pain and bleeding. However, there is a recurrence rate of symptoms in 35 % of women following a UAE. Also, UAE has the risk of causing major complications in 5 % of women who undergo the procedure. Major complications include infection, significant bleeding, and needing an additional surgery. UAE has also been shown in some cases to reduce ovarian function. Finally, 26 % of women who undergo UAE ultimately end up requiring a hysterectomy. Myometrium or adenomyoma resection : In this procedure, surgeons remove a focal consolidation of adenomyosis known as an adenomyoma. To be successful this procedure requires that the adenomyosis is relatively focally isolated and with a minimal diffuse spread. Unfortunately, adenomyosis is commonly diffuse and the operation is successful only 50 % of the time. The procedure is performed with either a laparoscope or hysteroscope. Additionally, it can be a difficult surgery to perform as diffuse adenomyosis physically weakens the myometrium and surgical sutures can tear through the muscle with minimal force. When successful, the procedure significantly improves menstrual pain and bleeding. Additionally, it can result in improved fertility with pregnancy rates as high as 78 % in women trying to conceive after the operation with successful delivery occurring in as many as 69 % of those pregnancies. On the other hand, there is an increased miscarriage rate ( as high as 39 % of pregnancies ), which is higher than the general population. This is likely due to increased uterine scar tissue formation caused by the surgery. Myometrial electrocoagulation Myometrial reduction MRI - guided focused ultrasound surgery Endometrial ablation and resection Endometrial ablation techniques result in sterility and therefore are suitable only for women who have completed their childbearing. The techniques either include physical resection and removal of the endometrium through a hysteroscope, or focus on ablating or killing the endometrial layer of the uterus without its immediate removal. Endometrial ablation and resection techniques are most appropriate for shallow adenomyosis. The efficacy of the procedures is reduced if the adenomyosis is too widespread or deep. Furthermore, deep adenomyosis may become trapped behind a scarred region that was ablated, leading to further bleeding and pain. Endometrial resection is also limited to relatively shallow adenomyosis as significant bleeding may result from damage to large arteries that are present 5 mm deep within the myometrium. Non-hysteroscopic procedures : These techniques do not require a hysteroscope, are relatively fast, and many can be performed as an outpatient procedure. High - energy radiofrequency ablation : Using a small expandable mesh placed within the uterus, providers use high - energy radio waves to ablate the endometrium. Thermal balloon : Using a thin expanding balloon placed within the uterus, providers can introduce heated fluid and ablate the endometrium. This procedure has been shown to result in amenorrhea or complete cessation of menstrual bleeding for 12 months in 23 % of patients. 16 % of patients eventually experience treatment failure with pain or bleeding requiring additional treatments or a hysterectomy. Women older than 45 and those with milder adenomyosis were more likely to experience successful amenorrhea following the procedure. In contrast, women younger than 45, with multiple childbirths, a history of a prior tubal ligation, and / or a history of menstrual pain were more likely to experience treatment failure. Cryo - endometrial ablation ( CEA ) : A form of cryotherapy whereby using a small probe, providers can directly apply sub-zero temperatures within the uterus to freeze and ablate the endometrium. Circulating Hot Water : Heated water directly introduced into the uterus is used to thermally ablate the endometrium. Microwave ablation : Using a small probe introduced into the uterus, a provider uses microwave energy to ablate the endometrium. Hysteroscopic procedures : These techniques all require the use of a hysteroscope to perform. Wire - loop resection : Under direct visualization through a hysteroscope, a wire loop instrument charged with an electric current permits a provider to carefully remove the endometrium in strips. Laser ablation : Under direct visualization through a hysteroscope, lasers are used to vaporize and ablate the endometrium. Rollerball ablation : Under direct visualization through a hysteroscope, a metallic ball on the end of a probe is charged with electricity and rolled across the surface of the endometrium. This has been shown to have a coagulative effect to the depth of 2 -- 3 mm into the myometrium. This destroys the endometrium and the nearby growth of dysfunctional smooth muscle. Deeper adenomyosis escapes this coagulative effect. Non-uterine - sparing procedures See also : Hysterectomy Hysterectomy, or surgical removal of the uterus, has historically been the primary method of diagnosing and treating adenomyosis. It was especially popular in women who had completed their childbearing or in cases where fertility was not desired. Today, there are many more medical and surgical interventions available. These treatments, such as hormonal therapy and endometrial ablation, have significantly reduced the number of women who require a hysterectomy. That being said, hysterectomies remain as the final treatment option for women in whom the other treatments have failed. Typically viewed as definitive treatment for the bleeding and pelvic pain associated with adenomyosis, a hysterectomy will always result in sterility and cessation of menstrual bleeding. Pelvic pain, on the other hand, can persist after a hysterectomy in as many as 22 % of women. There are many different types of hysterectomy, with varying options existing to removal the fallopian tubes, ovaries, and cervix. Also, the varying types of hysterectomy can be performed by many different surgical techniques. A hysterectomy can be performed : laparoscopically through small holes in the abdomen robotically in a manner similar to the laparoscopic procedure entirely by route of the vagina with no abdominal incisions through a larger abdominal incision Variants also exist which combine several of these techniques and surgeries can even change during the operation from one technique to another in response to unforeseen obstacles or individual anatomy considerations. For example, adenomyosis can increase the size of the uterus to such an extent that it physically can not be removed through the vagina without first being cut into smaller pieces. Prognosis Adenomyosis is a benign but often progressing condition. It is advocated that adenomyosis poses no increased risk for cancer development. However, both entities could coexist and the endometrial tissue within the myometrium could harbor endometrioid adenocarcinoma, with potentially deep myometrial invasion. As the condition is estrogen - dependent, menopause presents a natural cure. Ultrasound features of adenomyosis will still be present after menopause. People with adenomyosis are also more likely to have uterine fibroids or endometriosis. Fertility Adenomyosis itself can cause infertility issues, however, fertility can be improved if the adenomyosis has resolved following hormone therapies like levonorgestrel therapy. The discontinuation of medication or removal of IUD can be timed to be coordinated with fertility treatments. There has also been one report of a successful pregnancy and healthy birth following high - frequency ultrasound ablation of adenomyosis. Preterm labour and premature rupture of membranes both occur more frequently in women with adenomyosis. In sub-fertile women who received in - vitro fertilization ( IVF ), women with adenomyosis were less likely to become pregnant and subsequently more likely to experience a miscarriage. Given this, it is encouraged to screen women for adenomyosis by TVUS or MRI before starting assisted reproduction treatments ( ART ). Etymology The term adenomyosis is derived from the Greek terms adeno - ( meaning gland ), myo - ( meaning muscle ), and - osis ( meaning condition ). See also Adenomyoma Atypical polypoid adenomyoma References Jump up ^ `` adenomyosis '' at Dorland 's Medical Dictionary Jump up ^ Lazzeri L, Di Giovanni A, Exacoustos C et al. Preoperative and postoperative clinical and transvaginal ultrasound findings of adenomyosis in patients with deep infiltrating endometriosis. Reprod. Sci. doi : 10.1177 / 1933719114522520 ( 2014 ) ( Epub ahead of print ). ^ Jump up to : Katz VL ( 2007 ). Comprehensive gynecology ( 5th ed. ). Philadelphia PA : Mosby Elsevier. Jump up ^ `` adenomyometritis '' at Dorland 's Medical Dictionary Jump up ^ Matalliotakis, I. ; Kourtis, A. ; Panidis, D. ( 2003 ). `` Adenomyosis ''. 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Ultrasound in Obstetrics and Gynecology. 33 ( 5 ) : 599 -- 608. ISSN 1469 - 0705. doi : 10.1002 / uog. 6328. Jump up ^ Kepkep K, Tuncay YA, Göynümer G, Tutal E ( 2007 ). `` Transvaginal sonography in the diagnosis of adenomyosis : which findings are most accurate ? ''. Ultrasound Obstet Gynecol. 30 ( 3 ) : 341 -- 5. PMID 17659649. doi : 10.1002 / uog. 3985. Jump up ^ Sakhel, K. and A. Abuhamad, Sonography of adenomyosis. J Ultrasound Med, 2012. 31 ( 5 ) : p. 805 - 8. Jump up ^ Dartmouth, Katherine ( 2014 - 08 - 01 ). `` A systematic review with meta - analysis : the common sonographic characteristics of adenomyosis ''. Ultrasound. 22 ( 3 ) : 148 -- 157. ISSN 1742 - 271X. PMC 4760530. PMID 27433212. doi : 10.1177 / 1742271X14528837. Jump up ^ Sharma, Kaveri. `` Role of 3D Ultrasound and Doppler in Differentiating Clinically Suspected Cases of Leiomyoma and Adenomyosis of Uterus ''. JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH. doi : 10.7860 / jcdr / 2015 / 12240.5846. Jump up ^ Exacoustos, C., et al., Adenomyosis : three - dimensional sonographic findings of the junctional zone and correlation with histology. Ultrasound Obstet Gynecol, 2011. 37 ( 4 ) : p. 471 - 9. ^ Jump up to : Bragheto A.M. ; et al. ( 2007 ). `` Effectiveness of the levonorgestrel - releasing intrauterine system in the treatment of adenomyosis diagnosed and monitored by magnetic resonance imaging. ''. Contraception. 76 ( 3 ) : 195 -- 9. doi : 10.1016 / j. contraception. 2007.05. 091. CS1 maint : Explicit use of et al. ( link ) Jump up ^ Maheshwari, A., et al., Adenomyosis and subfertility : a systematic review of prevalence, diagnosis, treatment and fertility outcomes. Hum Reprod Update, 2012. 18 ( 4 ) : p. 374 - 92. Jump up ^ Niu, Z., et al., Long - term pituitary downregulation before frozen embryo transfer could improve pregnancy outcomes in women with adenomyosis. Gynecol Endocrinol, 2013. Jump up ^ ( 1 ), Levgur, M. ( 2007 ). `` Therapeutic options for adenomyosis : a review ''. Archives of Gynecology and Obstetrics. 276 ( 1 ) : 1 -- 15. PMID 17186255. doi : 10.1007 / S00404 - 006 - 0299 - 8. Jump up ^ Ismiil N, Rasty G, Ghorab Z, et al. ( August 2007 ). `` Adenomyosis involved by endometrial adenocarcinoma is a significant risk factor for deep myometrial invasion ''. Ann Diagn Pathol. 11 ( 4 ) : 252 -- 7. PMID 17630108. doi : 10.1016 / j. anndiagpath. 2006.08. 011. ^ Jump up to : Vercellini, Paolo ; Consonni, Dario ; Dridi, Dhouha ; Bracco, Benedetta ; Frattaruolo, Maria Pina ; Somigliana, Edgardo ( 2014 - 05 - 01 ). `` Uterine adenomyosis and in vitro fertilization outcome : a systematic review and meta - analysis ''. Human Reproduction. 29 ( 5 ) : 964 -- 977. ISSN 0268 - 1161. PMID 24622619. doi : 10.1093 / humrep / deu041. 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Question: abnormal growth of the lining of the uterus outside the uterus is called
Answer: endometriosis