Surgeons Removed Rare Gas-Filled Bladder Mass

A report details how doctors treated a rare bacterial bladder mass in an elderly patient with a long-term catheter.

Updated on Oct. 3, 2026 in Men’s Health

Bold vector editorial illustration of a glass medical vessel filled with amber fluid and bubbles, symbolizing a rare internal obstruction.
Surgeons in Norwich, U.K., successfully removed a rare, gas-filled bladder mass from an elderly patient, addressing complications caused by a long-term catheter. AI Illustration. Upload story photo >

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Surgeons in Norwich, U.K., successfully removed a large, gas-containing mass from the bladder of a patient in his 80s. The rare bacterial infection had caused severe complications, including urine backup into both kidneys and urosepsis.

Why it matters

This case highlights the serious infection risks associated with long-term urinary catheters, which are linked to 75% of hospital-acquired urinary tract infections. Recognizing the warning signs of such rare infections is critical for preventing life-threatening urosepsis.

A case report published September 24, 2026, describes a patient in his 80s with microorganisms including Proteus and Aerococcus. While the patient recovered, this condition is rare and the median age of those diagnosed with Aerococcus urinae is 79.

The players

BMJ Case Reports

A peer-reviewed journal that publishes clinical findings to share rare or educational medical experiences.

Changi General Hospital

A Singaporean healthcare facility that previously documented a comparable bacterial bladder mass.

The details

The mass developed as a result of bacterial colonization, likely facilitated by the presence of a long-term urinary catheter. Imaging revealed that the gas-filled growth was obstructing urine flow, which caused bilateral hydronephrosis, or swelling of the kidneys. Surgeons removed the mass to restore normal drainage and address the patient's acute urosepsis.

Timeline

  1. 2017: Aerococcus urinae was recognized in literature as an emerging infection.

  2. 2018: The patient was diagnosed with esophageal cancer.

  3. 2020: A similar case of a bacterial bladder mass was reported in Singapore.

  4. Sept. 24, 2026: The case report was published in BMJ Case Reports.

Health Landscape

This case report follows a pattern set by BMJ Case Reports of documenting rare presentations of common urinary infections. It emphasizes the evolving medical understanding of emerging infections like Aerococcus urinae in aging populations.

If you or a loved one use a long-term urinary catheter, discuss specific infection-prevention hygiene practices with your physician. Watch closely for signs of sepsis or unexpected catheter blockages, and seek immediate care if you develop fever or acute abdominal pain.

The takeaway

This case serves as a reminder of the vital importance of proper catheter maintenance and vigilance for older adults in residential care. Patients should proactively discuss the necessity and care protocols of any long-term medical device with their primary physician.

Further reading

For more on managing urinary health, visit Men’s Health.

Source note: This article includes information reported by Medical Daily.

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