Evidence map›Paper›PMID 42824714›Full record

ArticleUrology case reports2026

Small cell carcinoma arising in a defunctionalized bladder after urinary diversion for a benign condition: A case report and literature review.

Taketoshi Nara, Hiromi Sato, Mizuki Kobayashi, Ryohei Yamamoto, Mitsuru Saito, Shintaro Narita

Abstract readCase Reports
PubMed Full text at PMC Publisher
In one paragraph

Article in Urology case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Taketoshi NaraDepartment of Urology, Japanese Red Cross Akita Hospital, Akita, Japan.
Hiromi SatoDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Mizuki KobayashiDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Ryohei YamamotoDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Mitsuru SaitoDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.
Shintaro NaritaDepartment of Urology, Akita University Graduate School of Medicine, Akita, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bladder cancer arising in a defunctionalized bladder after urinary diversion is rare. We report a 42-year-old man who developed pure small cell carcinoma 20 years after diversion for childhood trauma. Lower abdominal discomfort and increasing intravesical fluid accumulation prompted reevaluation. Preoperative biopsy was interpreted as urothelial carcinoma, whereas the cystectomy specimen revealed pure small cell carcinoma. He underwent radical cystectomy followed by adjuvant etoposide and cisplatin chemotherapy and remained recurrence-free for 15 years. This case highlights the importance of long-term follow-up, reassessment of new or worsening clinical findings, and recognition of potential sampling limitations of a small biopsy specimen.

Indexed as

Bladder cancerDefunctionalized bladderSmall cell carcinomaUrinary diversion

Identifiers

PMID42824714
PMCPMC13627803

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.