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14 June 2022 : Case report  Portugal

[In Press] A 68-Year-Old Woman Presenting with Recurrent Abdominal Pain and a Diagnosis of a Presacral Retroperitoneal Benign Schwannoma that Mimicked an Ovarian Tumor on Pelvic Magnetic Resonance Imagining

Challenging differential diagnosis, Rare disease

Andreia J. Santos1ABEF, Liliana Duarte1BEF, Sara Catarino Santos1BEF, Carlos Casimiro1E

DOI: 10.12659/AJCR.935985

Am J Case Rep In Press; DOI: 10.12659/AJCR.935985  

Available online: 2022-06-14, In Press, Corrected Proof

Publication in the "In-Press" formula aims at speeding up the public availability of the pending manuscript while waiting for the final publication. The assigned DOI number is active and citable. The availability of the article in the Medline, PubMed and PMC databases as well as Web of Science will be obtained after the final publication according to the journal schedule

Abstract

BACKGROUND
Schwannomas are benign tumors and their appearance in the pelvic region is rare and poses a major diagnostic problem. They can be sporadic or associated with genetical syndromes. They have a slow growth rate and may be asymptomatic for many years. Symptoms are usually nonspecific and due to compression of adjacent structures. Abdominal imaging modalities may not be able to differentiate a benign schwannoma from a malignant retroperitoneal tumor. This report is of a case of a 68-year-old woman presenting with recurrent abdominal pain and a diagnosis of a presacral retroperitoneal benign schwannoma that mimicked an ovarian tumor on pelvic magnetic resonance imaging.
CASE REPORT
The patient had a history of a femoral hernia repair and recurrent lower abdominal pain. Pelvic imaging raised the suspicion of a primary ovarian tumor. The mass appeared to have clear cleavage planes with the surrounding structures, so the patient was proposed for an exploratory laparotomy. Prior to the surgery, an additional pelvic computed tomography (CT) was performed (10 months after the first one), which did not show progression of the disease. The histological examination result was compatible with a benign retroperitoneal schwannoma and not an ovarian tumor.
CONCLUSIONS
This report highlights that the diagnosis of retroperitoneal and pelvic masses can be challenging. In women, a primary ovarian tumor should be excluded on imaging and the diagnosis of a benign tumor, such as schwannoma, must be confirmed by histopathology, either preoperatively or following tumor resection.

Keywords: Diagnosis, Differential; Histology; Laparotomy; Neurilemmoma; Pelvic Neoplasms; Retroperitoneal Neoplasms

SARS-CoV-2/COVID-19

16 June 2022 : Case report  Ecuador

Multidrug-Resistant Klebsiella pneumoniae in a Patient with SARS-Cov-2 Pneumonia in an Intensive Care Unit ...

Am J Case Rep In Press; DOI: 10.12659/AJCR.936498  

13 June 2022 : Case report  Japan

Stenotrophomonas maltophilia Infection Associated with COVID-19: A Case Series and Literature Review

Am J Case Rep In Press; DOI: 10.12659/AJCR.936889  

13 June 2022 : Case report  Saudi Arabia

Atlantoaxial Subluxation Secondary to SARS-CoV-2 Infection: A Rare Orthopedic Complication from COVID-19

Am J Case Rep In Press; DOI: 10.12659/AJCR.936128  

03 June 2022 : Case report  Japan

Clinical Outcomes of Sotrovimab Treatment in 10 High-Risk Patients with Mild COVID-19: A Case Series

Am J Case Rep In Press; DOI: 10.12659/AJCR.936832  

In Press

24 Jun 2022 : Case report  USA

A 24-Year-Old Man Presenting with Lung Metastases from a Primary Retroperitoneal Extragonadal Choriocarcinoma

Am J Case Rep In Press; DOI: 10.12659/AJCR.936288  

24 Jun 2022 : Case report  Romania

Odontogenic Keratocyst: The Dos and Don’ts in a Clinical Case Scenario

Am J Case Rep In Press; DOI: 10.12659/AJCR.936641  

24 Jun 2022 : Case report  Saudi Arabia

Management of Patients with Alagille Syndrome Undergoing Living Donor Liver Transplantation: A Report of 2 ...

Am J Case Rep In Press; DOI: 10.12659/AJCR.936513  

22 Jun 2022 : Case report  USA

A Case of Lymphomatoid Granulomatosis in a Lymph Node with Unique Clinical and Histopathologic Features

Am J Case Rep In Press; DOI: 10.12659/AJCR.936862  

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923