# Laparoscopic Partial Cystectomy for Inflammatory Myofibroblastic Tumor of the Urinary Bladder

**Authors:** Hajime Yamasaki, Shigeaki Nakazawa, Kentaro Takezawa, Taigo Kato, Koji Hatano, Yoichi Kakuta, Atsunari Kawashima, Shinichiro Fukuhara, Norio Nonomura

PMC · DOI: 10.1002/iju5.70100 · IJU Case Reports · 2025-10-16

## TL;DR

A 38-year-old woman with a rare bladder tumor underwent laparoscopic surgery and remained symptom-free with no recurrence after two years.

## Contribution

Laparoscopic partial cystectomy with cystoscopy guidance is a safe and effective treatment for bladder IMT extending beyond the bladder wall.

## Key findings

- The patient remained asymptomatic with no recurrence at 2-year follow-up.
- Laparoscopic partial cystectomy achieved complete resection with adequate margins.

## Abstract

Inflammatory myofibroblastic tumor (IMT) of the bladder is a rare benign tumor characterized by atypical spindle cell proliferation and inflammatory cell infiltration, typically involving lymphocytes and plasma cells.

A 38‐year‐old woman presented with micturition pain and urinary frequency. Cystoscopy revealed an elevated tumor with edematous mucosa on the anterior bladder wall. Transurethral resection confirmed IMT of the bladder but was incomplete, prompting laparoscopic partial cystectomy with cystoscopy guidance. At 2‐year follow‐up, the patient remained asymptomatic with no recurrence.

Complete resection is the standard treatment for bladder IMT. When the tumor extends beyond the bladder wall, laparoscopic partial cystectomy with cystoscopy guidance offers a safe and effective surgical approach for achieving complete resection with adequate margins.

## Linked entities

- **Diseases:** Inflammatory myofibroblastic tumor (MONDO:0015798), bladder tumor (MONDO:0004987)

## Full-text entities

- **Diseases:** IMT (MESH:D009369), inflammatory (MESH:D007249), bladder IMT (MESH:D001749), pain (MESH:D010146)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12580002/full.md

## References

14 references — full list in the complete paper: https://tomesphere.com/paper/PMC12580002/full.md

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Source: https://tomesphere.com/paper/PMC12580002