Uterus-like mass of the ovary

Mitra, Surajit; Nicol, Andrea; Gi, Scott

doi:10.1080/01443619750114284

Cited by 14 publications

(8 citation statements)

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“…Sizes of the findings of previously reported cases ranged from 2 to 21 cm. [5,16] The masses consistently showed a solid cystic mass. Solid and cystic areas were found in the gross appearance.…”

Section: Discussionmentioning

confidence: 99%

Uterus-like mass

Zhou³

2016

Medicine

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Background:Uterus-like mass (ULM) is an extremely rare lesion. Gross morphology of ULM resembling a uterus. It can occur in various organs in the abdominal cavity, even in the spinal cord. The histogenesis of ULM remains uncertain. A number of hypotheses have been proposed including metaplasia, congenital anomaly, and heterotopia theory.Methods:We describe a case of 43-year-old male presented with a complaint of acute low abdominal pain. Pelvic ultrasound found a large pelvic mass embedded in the broad ligament.Results:The mass contains a variable thickness smooth muscle layer lined with endometrial glands and stroma which resembling a uterus. Eventually, the patient was diagnosed as ULM by histopathological examination.Conclusion:Except hypomenorrhea, the patient did not have any other associated abnormalities. We suggest this case supports the metaplasia theory that ULM is a benign mass formed by the proliferation of ectopic endometrial stromal cells or pluripotent mesenchymal cells of the 2nd Müllerian system.

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Section: Discussionmentioning

confidence: 99%

Uterus-like mass

Zhou³

2016

Medicine

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“…To the best of our knowledge, there are a total of 45 reports (53 cases) in English. [1–45] The most common location for a single mass was in the pelvic cavity (37 cases), including 12 cases in adnexa [7–15,27,44] and 7 cases in broad ligament. [16–22] There were 9 cases of single mass outside the pelvis, [29–33,35,36,38,43] of which 3 cases occurred in the liver.…”

Section: Discussionmentioning

confidence: 99%

“…[1] The extrauterine adenomyoma is rare, and it was first reported by Rubenstein and Kurzon in 1952. [2] So far, the reported sites of extrauterine adenomyoma are mainly in the pelvic cavity, such as pararectal space, [1,[3][4][5][6] ovary, [1,[7][8][9][10][11][12][13][14][15] broad ligament, [16][17][18][19][20][21][22][23] the round ligament, [1,2,24] paraovarian, [10,[25][26][27] parametrial, [10] and pelvic wall. [28] It is extremely rare outside the pelvic cavity such as liver, [29,30] upper abdomen, [6] inguinal region, [31,32] colon, [33,34] appendix, [35] small bowel mesentery, [36,37] and retroperitoneal space.…”

Section: Introductionmentioning

confidence: 99%

Extrauterine adenomyoma of the lesser omentum: A case report and review of the literature

Chen

Deng

Zhao³

et al. 2022

Medicine

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Rationale: The extrauterine adenomyoma is rare and it is extremely rare outside the pelvic cavity. Herein, we reported the first case of a single extrauterine adenomyoma occurring in the lesser omentum.Patients concerns: This case involved a 55-year-old woman who had undergone subtotal gastrectomy and omentectomy for gastric carcinoma. During postoperational pathological examination, 1 lymph node-like mass was coincidentally found in the lesser omentum. The patient had a history of hysterectomy for uterine leiomyoma 8 years ago.Diagnoses: The resected 17 "lymph nodes" from the lesser omentum were routinely checked for possible metastasis of gastric carcinoma. One of lymph node-like mass was microscopically showed that it was composed of benign smooth muscle components, endometrial glands and stroma by HE staining. Therefore, adenomyoma was initially considered.Interventions: The lymph node-like mass was removed together with the lesser omentum during the subtotal gastrectomy and omentectomy for gastric carcinoma. No special intervention was performed for the adenomyoma.Outcomes: Immunohistochemical staining confirmed that smooth muscle tissue was diffusely and strongly positive for Desmin, smooth muscle actin, estrogen receptor, and progesterone receptor, and negative for CD117, Dog-1, S100, and CD34. Endometrial glands and stroma were positive for estrogen receptor and progesterone receptor, and the endometrium interstitium was also positive for CD10. The final diagnosis of extrauterine adenomyoma occurring in the lesser omentum was established.Lessons: So far, to the best of our knowledge, total 53 cases of extrauterine adenomyoma have been reported in 45 English reports. The most common location for a single mass was pelvic cavity (37 cases), but rarely outside the pelvic cavity. This is the first case of a single extrauterine adenomyoma occurring in the lesser omentum.Abbreviations: CD10 = common acute lymphoblastic leukemia antigen, CD117 = stem cell growth factor receptor, CD34 = hematopoietic progenitor cell antigen, ER = estrogen receptor, PR = progesterone receptor, SMA = smooth muscle actin.

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“…Most of the included studies were judged as "low risk" of bias in the "Overall judgment" domain according to Murad et al 58 A medium risk of bias was found in 14 studies. 16,21,38,45,50,61,62,66,68,71,73,74,76,80 In detail, "Study selection" and "Reporting" domains were judged adequate for all the included studies. "Ascertainment" domain was deemed inadequate in three studies.…”

Section: Risk Of Bias Within Studiesmentioning

confidence: 99%

“…39,76,80 "Causality", the first domain for alternative causes, was not explained appropriately in 21 studies, and follow up was inadequately reported in 42 cases, of which 34 were not available . 12,16,20,21,[31][32][33][37][38][39][41][42][43]45,46,[48][49][50][51][59][60][61][62][63][64][65][66][67][68]70,71,73,74,[77][78][79][80][83][84][85][86]89 Details about authors judgments are reported in the Figure S2.…”

Section: Risk Of Bias Within Studiesmentioning

confidence: 99%

Extrauterine adenomyoma: A case report and systematic review of the literature

Giorgi,

Labanca,

Centini

et al. 2023

Intl J Gynecology & Obste

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ObjectiveTo describe a case of extrauterine adenomyoma (EA) and review all the cases of EA in the literature.MethodsPubmed/MEDLINE, Embase, and Google Scholar from 1807 to December 2022. All studies reporting the histologic diagnosis of an EA. We collected the following data: patient's age, size and location of adenomyoma, presence of endometriosis and adenomyosis, past gynecologic treatment, symptoms, diagnostic imaging, surgical intervention, alternative/adjuvant treatment, associated malignancy, and follow up.ResultsSixty‐seven studies with 85 patients were included. Pain was the most frequent symptom (69.5%). Among diagnostic examinations, ultrasonography was used in 60 out of 81 reported cases, with several radiologic features described. EA was located inside the pelvis in 77.6% of patients. Adnexa were the most frequent site of the disease (24, 28.2%). History of endometriosis or adenomyosis was described in 35 patients (35, 41.2%). Uterine tissue morcellation was reported in 6 of the 85 patients (7.1%). Associated malignancy was detected in 9 out of 85 patients with available data (10.6%). There were two recurrences of disease.ConclusionSpecific imaging features of EA are yet to be described in the literature. History of endometriosis and adenomyosis or uterine tissue morcellation may be suggestive of EA. Histologic examination can give a definitive diagnosis and exclude malignant transformation.

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Uterus-like mass of the ovary

Cited by 14 publications

References 1 publication

Uterus-like mass

Uterus-like mass

Extrauterine adenomyoma of the lesser omentum: A case report and review of the literature

Extrauterine adenomyoma: A case report and systematic review of the literature

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