Evidence map›Paper›PMID 33316759›Full record

ArticleThe Journal of surgical research2021

Presentation, Management, and Prognosis of Primary Gastrointestinal Melanoma: A Population-Based Study.

Amanda R Kahl, Xiang Gao, Catherine Chioreso, Paolo Goffredo, Imran Hassan, Mary E Charlton, Chi Lin

Open access · greenAbstract read
In one paragraph

Article in The Journal of surgical research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 14% of its field
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

18 citing papers in PubMed, 28 citations in OpenAlex.

  1. Trial
  2. Primary melanoma of the gastrointestinal tract.World journal of gastroenterology · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Primary gallbladder melanoma - a rare entity or a diagnostic pitfall?Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
    Review
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

7 authors at 3 institutions in 1 country.

Amanda R KahlIowa Cancer Registry, Iowa City, Iowa. Electronic address: amanda-kahl@uiowa.edu.
Xiang GaoDepartment of Surgery, University of Iowa Carver College of Medicine, Iowa City, Iowa.
Catherine ChioresoDepartment of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa.
Paolo GoffredoDepartment of Surgery, University of Iowa Carver College of Medicine, Iowa City, Iowa.
Imran HassanDepartment of Surgery, University of Iowa Carver College of Medicine, Iowa City, Iowa.
Mary E CharltonDepartment of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa.
Chi LinUniversity of Nebraska Medical Center.
University of Iowa · USUniversity of Iowa Health Care · USUniversity of Nebraska Medical Center · US

Funding

Viral VectorP30CA086862 · NCI · UNIVERSITY OF IOWA · PI Douglas Robert Spitz · 2000 to 2026
$70.0M
University of Iowa Surgical Oncology Training GrantT32CA148062 · NCI · UNIVERSITY OF IOWA · PI WEIGEL, RONALD J · 2010 to 2020
$3.8M
NCI NIH HHS HHSN261201800012CNCI NIH HHS HHSN261201800012INCI NIH HHS P30 CA086862NCI NIH HHS T32 CA148062
6 · The paper itself

Abstract

backgroundPrimary gastrointestinal (GI) melanomas, compared with cutaneous melanomas, have a much lower incidence. As a result, there is a paucity of data regarding their presentation, treatment, and prognosis. The aim of this study was to analyze the incidence, patient characteristics, treatment patterns, and survival of primary GI melanomas in comparison with cutaneous melanomas using a population-based cohort.

methodsPatients diagnosed with primary GI and cutaneous melanomas were identified from Surveillance, Epidemiology, and End Results 1973-2016 data.

resultsA total of 872 primary GI melanomas and 319,327 cutaneous melanomas were identified. GI melanoma incidence increased by an annual percent change of 1.82 (P < 0.05) during the study period. The most common sites for GI melanoma were the anus (50%) and rectum (34%). Compared to cutaneous melanoma, patients diagnosed with GI melanomas were older, women (58% versus 45%), non-White (16% versus 6%), and presented with a higher stage (36% versus 4% distant stage, all P < 0.001). GI melanomas had significantly worse cancer-specific survival (CSS) than cutaneous melanoma. Despite the poor prognosis, the CSS has increased in recent years. Among patients with anorectal melanomas, local excision with chemotherapy and/or radiation had a similar CSS compared with those with major surgery only.

conclusionsDespite a steady increasing incidence since 1975, GI melanomas are rare, present with advanced stages, and have worse outcomes than cutaneous melanomas. The improved prognosis of these tumors in recent years might reflect the impact of novel targeted treatments and the more common use of local tumor excision over major resections.

Indexed as

AdolescentAdultAgedAged, 80 and overChemotherapy, AdjuvantDigestive System Surgical ProceduresFemaleGastrointestinal NeoplasmsHumansIncidenceMaleMelanomaMiddle AgedPractice Patterns, Physicians'PrognosisRadiotherapy, AdjuvantAnorectal melanomaCutaneous melanomaGastrointestinal melanoma/cancerSEER program

Identifiers

PMID33316759
PMCPMC7946707
OpenAlexW3110798851

What OpenQuestion holds

Textmetadata
LicenceTDM
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.