Trial reportPloS one2019
The natural history of incidental retroperitoneal schwannomas.
Trial report in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
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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
14 citing papers in PubMed, 33 citations in OpenAlex.
- Contrast-enhanced endoscopic ultrasonography differentiated pancreatic schwannoma from concurrent neuroendocrine tumor.Clinical journal of gastroenterology · 2026Article
- Incidental detection of adrenal schwannoma: a case report.Journal of medical case reports · 2026Article
- Efficacy analysis of percutaneous cannulated paravertebral approach for microscopic resection of intraspinal schwannomas: A case series.Experimental and therapeutic medicine · 2026Article
- Rare incidental retroperitoneal schwannoma discovered as an adrenal mass upon pre-renal transplant workup: case report.Journal of surgical case reports · 2025Article
- Article
- [ Giant asymptomatic anterolateral diaphragmatic hernia in an adult: report of a rare case]Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina) · 2025Article
- Retroperitoneal ancient schwannoma presenting as left flank pain and moderate unilateral hydronephrosis: A case report and literature review.Clinical case reports · 2024Article
- [Retroperitoneal schwannoma mimicking colorectal cancer metastases: a false positive result report.]Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina) · 2024Article
- Successful management of a giant retroperitoneal ancient schwannoma mimicking malignant tumors: A case report and literature review.Annals of medicine and surgery (2012) · 2023Article
- Surgical management of sporadic and schwannomatosis-associated pelvic schwannomas.Neurosurgical review · 2023Article
- Clinical characteristics and prognosis of cystic degeneration in retroperitoneal schwannoma: A retrospective study of 79 patients.Cancer medicine · 2023Article
- Two giant connected retroperitoneal schwannomas: a rare case report.The Journal of international medical research · 2022Article
- Article
- Surgical Management of Symptomatic Lumbar, Sacral, and Lumbosacral Plexus Tumors: a Peripheral Nerve Unit Experience.Acta neurochirurgica · 2021Article
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The natural history of asymptomatic retroperitoneal schwannomas is poorly understood. This study aimed at investigating the natural history of incidental retroperitoneal schwannomas. The medical charts and imaging studies of 22 asymptomatic patients under observation for at least 12 months for retroperitoneal schwannomas were reviewed. The duration of follow-up ranged between 13 and 176 months (mean 48 months). In the 22 patients managed by the "wait and see" approach, the average tumor size at initial presentation was 51 mm, which increased to 57 mm at final follow-up. During the final follow-up, 2 patients required surgical treatment for tumor enlargement, while the remaining patients remained asymptomatic without surgery. The average growth rate of the tumors was 1.9 mm/year (range: -1.9 to 8.7 mm/year). The majority of asymptomatic retroperitoneal schwannomas demonstrate minimal growth and may be suitable for management with the "wait and see" approach.
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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.