# Unusual Dual Complications: Bowel Obstruction and Hydronephrosis Secondary to a Large Ovarian Serous Cystadenoma in a Postmenopausal Patient

**Authors:** Amber R Jacobson, Hamdan Mallick, Lynnsey M Rebner, Megan Poremba, Anirudha Goparaju

PMC · DOI: 10.7759/cureus.87081 · Cureus · 2025-06-30

## TL;DR

A postmenopausal woman had a large benign ovarian tumor causing bowel and kidney issues, showing the need for careful diagnosis and treatment.

## Contribution

This case highlights unusual complications from a benign ovarian tumor and emphasizes the importance of multidisciplinary care.

## Key findings

- A 72-year-old woman had a large ovarian serous cystadenoma causing bowel obstruction and hydronephrosis.
- CT imaging and laparotomy confirmed the diagnosis and guided treatment.
- The case underscores the potential severity of benign ovarian tumors.

## Abstract

Ovarian cystadenomas are common benign tumors that are typically detected early; however, some patients develop large, symptomatic masses. We report the case of a 72-year-old postmenopausal woman who presented with a two-week history of abdominal pain, nausea, vomiting, and right lower quadrant abdominal fullness. The patient had previously undergone hysterectomy and bilateral oophorectomy. CT imaging revealed a large, multi-loculated pelvic mass (19.3 × 17.4 cm) causing small bowel obstruction and right hydroureteronephrosis. An exploratory laparotomy was performed, and histopathological examination confirmed an ovarian serous cystadenoma. This case highlights that even benign ovarian lesions can lead to significant complications, underscoring the need for a multidisciplinary approach with the support of comprehensive imaging and meticulous surgical planning.

## Linked entities

- **Diseases:** bowel obstruction (MONDO:0004565), hydronephrosis (MONDO:0005510)

## Full-text entities

- **Genes:** MUC16 (mucin 16, cell surface associated) [NCBI Gene 94025] {aka CA125}, CALB2 (calbindin 2) [NCBI Gene 794] {aka CAB29, CAL2, CR}, PAX8 (paired box 8) [NCBI Gene 7849] {aka PAX-8}, EREG (epiregulin) [NCBI Gene 2069] {aka EPR, ER, Ep}, PGR (progesterone receptor) [NCBI Gene 5241] {aka NR3C3, PR}, WT1 (WT1 transcription factor) [NCBI Gene 7490] {aka AWT1, GUD, NPHS4, WAGR, WIT-2, WT-1}
- **Diseases:** hypertension (MESH:D006973), peritoneal metastasis (MESH:D010538), benign ovarian neoplasms (MESH:D010051), ileus (MESH:D045823), Serous cystadenomas (MESH:D018293), abdominal distension (MESH:D000007), abdominal pain (MESH:D015746), ovarian cyst (MESH:D010048), SBO (MESH:D007409), type 2 diabetes (MESH:D003924), dysuria (MESH:D053159), benign ovarian epithelial tumors (MESH:D000077216), bowel volvulus (MESH:D045822), nausea (MESH:D009325), cystic lymphangiomas (MESH:D018191), bleeding (MESH:D006470), obstruction (MESH:D000402), Serous tumors (MESH:D018297), ascites (MESH:D001201), cyst (MESH:D003560), benign adnexal tumors (MESH:D000292), Bowel Obstruction (MESH:D012778), intra-abdominal cysts (MESH:D000082122), choledochal cyst (MESH:D015529), pulmonary edema (MESH:D011654), endometriosis (MESH:D004715), Cystadenoma (MESH:D003537), adnexal lesion (MESH:D000291), infection (MESH:D007239), benign tumors (MESH:D009369), intra-abdominal cystic masses (MESH:C535553), Ovarian Serous Cystadenoma (MESH:D010049), chronic obstructive pulmonary disease (MESH:D029424), Hydronephrosis (MESH:D006869), compartment syndrome (MESH:D003161), ovarian torsion (MESH:D000082843), mucinous cystadenomas (MESH:D018291), leukocytosis (MESH:D007964), vomiting (MESH:D014839), intra (MESH:D057072)
- **Chemicals:** creatinine (MESH:D003404)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

7 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12311399/full.md

## References

15 references — full list in the complete paper: https://tomesphere.com/paper/PMC12311399/full.md

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Source: https://tomesphere.com/paper/PMC12311399