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Low-grade mucinous appendiceal neoplasm mimicking an ovarian lesion

2021-04-06Artigo científico Acesso aberto
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dc.contributor.authorBorges, André Luís
dc.contributor.authorPereira, Helena
dc.contributor.authorBorges, André Luís
dc.contributor.authorReis-de-Carvalho, Catarina
dc.contributor.authorChorão, Martinha
dc.contributor.authorDjokovic, Dusan
dc.contributor.institutionNOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM)
dc.contributor.pblBaishideng Publishing Group
dc.date.accessioned2021-04-22T22:47:01Z
dc.date.available2021-04-22T22:47:01Z
dc.date.issued2021-04-06
dc.description.abstractBACKGROUND Appendiceal tumors are rare lesions that may not be easily differentiated from primary ovarian lesions preoperatively, despite the use of advanced diagnostic methods by experienced clinicians. CASE SUMMARY A 59-year-old G2P2 woman, with chronic pelvic pain, underwent a pelvic ultrasound that revealed an adnexal mass measuring 58 mm × 34 mm × 36 mm, with irregular borders, heterogeneous echogenicity, no color Doppler vascularization and without acoustic shadowing. Normal ovarian tissue was visualized in contact with the lesion, and it was impossible to separate the lesion from the ovary by applying pressure with the ultrasound probe. Ascites, peritoneal metastases or other alterations were not observed. With the international ovarian tumor analysis ADNEX model, the lesion was classified as a malignant tumor (the risk of malignancy was 27.1%, corresponding to Ovarian-Adnexal Reporting Data System category 4). Magnetic resonance imaging confirmed the presence of a right adnexal mass, apparently an ovarian tumor measuring 65 mm × 35 mm, without signs of invasive or metastatic disease. During explorative laparotomy, normal morphology of the internal reproductive organs was noted. A solid mobile lesion involved the entire appendix. Appendectomy was performed. Inspection of the abdominal cavity revealed no signs of malignant dissemination. Histopathologically, the appendiceal lesion corresponded to a completely resected low-grade mucinous appendiceal neoplasm (LAMN). CONCLUSION The appropriate treatment and team of specialists who should provide health care to patients with seemingly adnexal lesions depend on the nature (benign vs malignant) and origin (gynecological vs nongynecological) of the lesion. Radiologists, gynecologists and other pelvic surgeons should be familiar with the imaging signs of LAMN whose clinical presentation is silent or nonspecific. The assistance of a consultant specializing in intestinal tumors is important support that gynecological surgeons can receive during the operation to offer the patient with intestinal pathology an optimal intervention.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent10
dc.format.extent4572993
dc.identifier.doi10.12998/wjcc.v9.i10.2334
dc.identifier.otherPURE: 29164353
dc.identifier.otherPURE UUID: acbe8052-69a8-402a-adcf-be909abc60d3
dc.identifier.otherScopus: 85103680437
dc.identifier.otherWOS: 000639445700020
dc.identifier.urihttp://hdl.handle.net/10362/116010
dc.identifier.urlhttps://www.scopus.com/pages/publications/85103680437
dc.language.isoeng
dc.peerreviewedyes
dc.subjectAdnexal diseases
dc.subjectAdnexal mass
dc.subjectAppendiceal neoplasm
dc.subjectCase report
dc.subjectDiagnostic imaging
dc.subjectPelvic neoplasm
dc.subjectGeneral Medicine
dc.titleLow-grade mucinous appendiceal neoplasm mimicking an ovarian lesionen
dc.title.subtitleA case report and review of literatureen
dc.typejournal article
degois.publication.firstPage2334
degois.publication.issue10
degois.publication.lastPage2343
degois.publication.titleWorld Journal of Clinical Cases
degois.publication.volume9
dspace.entity.typePublication
rcaap.rightsopenAccess

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