ArticleCureus2026
Extrapelvic Urinary Extravasation Caused by Retroperitoneal Metastasis of Pulmonary Squamous Cell Carcinoma: A Case Report.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A 52-year-old man with pulmonary squamous cell carcinoma, clinically staged as cTxN3M1c (stage IVB), received four cycles of first-line chemotherapy with cisplatin plus TS-1 followed by seven cycles of second-line nivolumab. Subsequent imaging revealed progressive enlargement of cervical lymph nodes, left adrenal metastasis, and retroperitoneal metastases. Over several days, he developed left flank and back pain and presented to the emergency department. An emergent contrast-enhanced abdominal computed tomography (CT) demonstrated contrast extravasation from the upper left ureter, left ureteral obstruction caused by retroperitoneal metastasis, and mild hydronephrosis. He was diagnosed with extrapelvic urinary extravasation and underwent placement of a polymeric double-J ureteral stent. His pain resolved promptly thereafter, allowing initiation of third-line chemotherapy. Extrapelvic urinary extravasation due to retroperitoneal dissemination of pulmonary squamous cell carcinoma is extremely rare, and no prior cases were identified in our literature search. Nevertheless, recognizing this condition as a potential differential diagnosis for flank or back pain during disease relapse may facilitate early intervention, support continuation of systemic therapy, and ultimately improve quality of life.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.