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Tubo-ovarian abscess with sepsis in a nonagenarian woman: a case report and literature review

Abstract

Background

A complete infectious focus survey relies on a thorough physical examination as well as a pelvic examination. Tubo-ovarian abscess, though less likely to occur in senior women, may become a life-threatening disease requiring emergent surgery. Hence, clinical awareness and aggressive management are warranted to avoid delayed diagnosis and subsequent complications.

Case presentation

We report a post-menopausal woman presented with sepsis of unknown origin, which turned out to be a huge tubo-ovarian abscess. Although tubo-ovarian abscess mostly occurs in women of fertile age, it is likely that the immune status of our post-menopausal patient was compromised because of old age and uremia. Moreover, due to underlying dementia, she could not express her discomfort in the early stage. Her sepsis resolved after a unilateral salpingo-oophorectomy surgery and antibiotic treatment. It is crucial to exclude pelvic inflammatory disease (PID) if no specific source of infection can be identified.

Conclusions

Rupture of the tubo-ovarian abscess is a condition of high mortality rate. Although tubo-ovarian abscess is more likely to develop in patients aged 15–25 years old, the tubo-ovarian abscess should be listed as a differential diagnosis in all post-menopausal women, especially those who are immunocompromised or with a palpable pelvic mass, to enable timely management and better prognosis.

Background

Tubo-ovarian abscess, one entity of pelvic inflammatory diseases (PID), mostly occurs in women of fertile age and may become a life-threatening condition requiring emergent surgery. Therefore, in order to ensure early recognition, it is essential to exclude PID if no specific source of infection can be identified, even in elderly post-menopausal women. In this report, we highlight the pivotal role of pelvic examination in a thorough infectious focus work-up.

Case presentation

A 91-year-old post-menopausal woman without diabetes mellitus or hypertension presented with shortness of breath, fever up to 38.5 degrees, anuria, and conscious disturbance for two days. Tracing back her history, she has dementia for 20 years with chronic kidney disease in stage 5, and she has not received any bowel or adnexal surgery. Last year, a transvaginal ultrasound had been performed by the gynecologist for a palpable pelvic mass, but only endometrial hyperplasia was impressed. Upon this admission, physical examination revealed a palpable mass as well, but there was no evident tenderness initially. Her body mass index was 23 Kg/m2. Laboratory test showed leukocytosis, azotemia with blood urea nitrogen 117 mg/dL, creatinine 12.9 mg/dL, C-reactive protein 26.2 mg/dL, procalcitonin 2.5 ng/mL, and pyuria. We initiated hemodialysis therapy for her uremia. Stool routine and culture showed negative results, indicating that colitis or gastrointestinal bleeding is less likely.

After two weeks of antibiotic treatment, leukocytosis, pyuria, and sepsis resolved, but intermittent fever lasted along with pelvic tenderness. We thus consulted the gynecologist again, who then arranged an urgent abdominal computed tomography (CT) because of the highly possible surgical requirement upon consultation. The CT scan disclosed the presence of a huge cystic mass 13.5 × 11.8 cm with internal septation and mural solid component without any obvious fat stranding at lower abdomen nor any evidence of acute colitis. The urinary bladder was compressed by it (Fig. 1). No significant enlarged lymph nodes were found. Mucinous cystadenoma with ovarian torsion was suspected, and thus surgical intervention was arranged. During the surgery, a 12 × 10 × 10 cm right tubo-ovarian abscess with 800 mL of pus-like content was drained. Right salpingo-oophorectomy and pus culture were performed. The pathological examination showed ovarian tissue with acute and chronic inflammation, inflammatory exudate, and granulation tissue formation, which were compatible with that of a tubo-ovarian abscess, and its pus culture yielded Escherichia coli. Antibiotics were administered based on the culture sensitivity test, and her infection ultimately resolved thereafter.

Fig. 1
figure1

An abdominal computed tomography demonstrated the presence of a huge cystic mass 13.5 × 11.8 cm (white arrows) with internal septation (panel a, black arrows) and solid mural component. The urinary bladder (panel b, arrowhead) was compressed by it. No significant enlarged lymph nodes were found

Discussion and conclusions

In a case series which enrolled 80 tubo-ovarian abscess patients, their age ranged from 15 to 69 years old with an average of 42 years old [1]. In another retrospective study enrolled 63 patients with a surgically confirmed tubo-ovarian abscess, only nine patients were post-menopausal [2], contrasting the rarity of our case who is a nonagenarian. Similarly, literature regarding tubo-ovarian abscess showed that the average age ranges 52–58-year-old in the post-menopausal group, as shown in Table 1 [1,2,3,4,5,6,7,8,9,10]. The risk factors for tubo-ovarian abscess include age between 15 to 25 years old, a prior history of pelvic inflammatory disease, and multiple sexual partners.

Table 1 Literature review of tubo-ovarian abscess in post-menopausal women

Heaton et al. reported 20 post-menopausal women with a tubo-ovarian abscess in a case series; only 20% of patients were febrile, 45% presenting with leukocytosis, and 55% having a palpable pelvic mass [11]. In our patient, fever and leukocytosis were presented initially. However, due to her underlying dementia, the patient could not express her discomfort. Meanwhile, the initial physical examination did not reveal any acute abdominal sign, leading to delayed recognition of tubo-ovarian abscess in our case. Hsiao et al. analyzed 74 patients with surgically proved tubo-ovarian abscess, they found that an accurate preoperative diagnosis of the tubo-ovarian abscess was significantly lower in the post-menopausal group as compared to the pre-menopausal group (22% versus 54%), indicating a highly prevalent silent presentation of tubo-ovarian abscess in the post-menopausal group [12]. Also, another predisposing factor of our patient may be her immunocompromised status because of advanced age and uremia, usually manifesting as reduced antigen-presenting dendritic cells, depletion of naïve and central memory T cells and B cells, and impaired phagocytic function of neutrophils and monocytes [13].

Because rupture of a tubo-ovarian abscess is a life-threatening emergency, aggressive medical or surgical management is required immediately [14]. Therefore, during infection work-up, clinicians should always consider PID to avoid delayed management, even if patients are more than 70 years old, as is our patient. A complete infectious focus survey relies on a thorough physical examination as well as a pelvic examination. Also, the tubo-ovarian abscess should be listed as a differential diagnosis in all post-menopausal women, especially those who are immunocompromised or with a palpable pelvic mass, to enable timely management and better prognosis.

Availability of data and materials

All data presented in this report are included in this published article.

Abbreviations

PID:

Pelvic inflammatory disease

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Acknowledgements

Not applicable.

Funding

This work was in part supported for research purpose by the “Development and Construction Plan” of the School of Medicine, National Yang-MingUniversity, Taiwan (107F-M01), the Ministry of Science and Technology, Taiwan (MOST 108–2633-B-009-001), and Taipei Veterans General Hospital, Taiwan (V106D25–003-MY3). The funders have no role in study design, data collection, analysis, and interpretation, or in writing of the manuscript.

Author information

Drafting manuscript: KC and CY. Revising manuscript content: JT and CY. Approving final version of manuscript: KC, JT, and CY. All authors make a significant contribution to the project and give final approval of the submitted manuscript.

Correspondence to Chih-Yu Yang.

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The son of the patient who was described in this case report had given written informed consent for the publication of this case report.

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The authors declare that they have no competing interests.

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Keywords

  • Fever of unknown origin
  • Tubo-ovarian abscess
  • Post-menopausal
  • Nonagenarian
  • Chronic kidney disease
  • Case report