Primary retroperitoneal mucinous cystadenoma: A case report with review of literature

Safouane Frini; Seifeddine Ben Hammouda; Ahlem Bellalah; Chiraz Chebanne; Slim Bchir; Leila Njim; Abdelfatteh Zakhama; Rim Hadhri

doi:10.1016/j.amsu.2022.104818

Primary retroperitoneal mucinous cystadenoma: A case report with review of literature

Ann Med Surg (Lond). 2022 Nov 5:84:104818. doi: 10.1016/j.amsu.2022.104818. eCollection 2022 Dec.

Authors

Safouane Frini^{1

2}, Seifeddine Ben Hammouda^{1

2}, Ahlem Bellalah^{1

2}, Chiraz Chebanne^{1

2}, Slim Bchir^{3

2}, Leila Njim^{1

2}, Abdelfatteh Zakhama^{1

2}, Rim Hadhri^{1

2}

Affiliations

¹ Department of Pathology, Fattouma Bourguiba University Hospital, Monastir, 5000, Tunisia.
² Faculty of Medicine, University of Monastir, Monastir, 5000, Tunisia.
³ Department of Urology, Fattouma Bourguiba University Hospital, Monastir, 5000, Tunisia.

Abstract

Introduction and importance: Primary Retroperitoneal mucinous cystadenoma (PRMC) is an extremely rare benign tumor, predominantly occurring in women, with unclear pathogenesis.

Case presentation: A 31-year-old woman, with no medical or surgical history, presented with left flank pain.

Clinical discussion: An abdominal computed tomography (CT) scan revealed an 11cm retroperitoneal cyst. Due to its large size, percutaneous CT-guided drainage followed by a laparotomy surgical resection, were performed. Post-operative course was uneventful. Histological and immunohistochemical findings were consistent with PRMC. The patient was disease-free after a 6-month follow-up.

Conclusion: Mucinous cystadenoma is a very odd finding in the retroperitoneum. Multiple differential diagnoses are to be considered beforehand, as most of cystic lesions in this anatomical region are malignant and require a different surgical approach. Radical resection, by laparotomy or laparoscopy, is the treatment of choice.

Keywords: Benign retroperitoneal tumor; Case report; Mucinous cystadenoma; Primary retroperitoneal mucinous cystadenoma; Retroperitoneal cyst; Surgical pathology.

Publication types

Case Reports