Evidence map›Paper›PMID 32052215›Full record

Observational studyDigestive diseases and sciences2021

Fibrolamellar Hepatocellular Carcinoma: A Population-Based Observational Study.

Daryl Ramai, Andrew Ofosu, Jonathan K Lai, Zu-Hua Gao, Douglas G Adler

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Digestive diseases and sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Treatment and Prognosis of Fibrolamellar Hepatocellular Carcinoma: a Systematic Review of the Recent Literature and Meta-analysis.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Pooled it
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  16. Bimodal Age Distribution in Cancer Incidence.World journal of oncology · 2022
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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

5 authors at 3 institutions in 2 countries.

Daryl RamaiDepartment of Medicine, The Brooklyn Hospital Center, Clinical Affiliate of The Mount Sinai Hospital, Brooklyn, NY, 11201, USA.
Andrew OfosuDivision of Gastroenterology and Hepatology, The Brooklyn Hospital Center, Clinical Affiliate of The Mount Sinai Hospital, Brooklyn, NY, 11201, USA.
Jonathan K LaiDepartment of Pathology, McGill University, Montreal, QC, Canada.
Zu-Hua GaoDepartment of Pathology, McGill University, Montreal, QC, Canada.
Douglas G AdlerDivision of Gastroenterology and Hepatology, Huntsman Cancer Center, University of Utah School of Medicine, Salt Lake City, UT, USA. Douglas.adler@hsc.utah.edu.
McGill University · CAMount Sinai Hospital · USHuntsman Cancer Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn the USA, fibrolamellar hepatocellular carcinoma (FLC) accounts for 1-2% of all cases of hepatocellular carcinoma. FLC remains poorly understood.

aimWe aim to investigate the incidence, demographics, tumor characteristics, treatment, and prognosis of patients with FLC.

methodsData on FLC between 2000 and 2016 were extracted from the SEER database and analyzed.

resultsA total of 300 patients with FLC were identified where 126 were male. Median age at diagnosis was 27 ± 22 years. The overall age-adjusted incidence of FLC between 2000 and 2016 was 0.02 per 100,000 per year. A bimodal distribution was observed where the highest incidences occurred between 15-19 years and 70-74 years. Most tumors on presentation were moderately differentiated (20.7%), while the most common stage at presentation was stage 1 (21.7%) followed by stages 3 and 4 (20.0% and 20.3%, respectively); 50.3% of these tumors were surgically resected, while 8.0% received radiation and 45.3% received chemotherapy. One- and 5-year cause-specific survival for FLC was 72.0% and 32.9%, respectively, with a median survival of 32.9 months. HCC had a median survival time of 11.7 months. Patients who were not treated with surgical intervention had about 3 times increased risk for death (HR 2.8, 95% CI 1.68-4.72, P = 0.000). Radiation and chemotherapy did not significantly affect outcomes.

conclusionFLC presents with a bimodal distribution in both early and elderly individuals. Compared to HCC, FLC has a higher recurrence rate but better survival outcome. Surgical intervention is superior to chemotherapy and radiation.

Indexed as

Population SurveillanceAdolescentAdultAgedAged, 80 and overCarcinoma, HepatocellularChildChild, PreschoolFemaleHumansMaleMiddle AgedYoung AdultEpidemiology and End Results RegistryFibrolamellar hepatocellular carcinomaHepatocellular carcinomaPrognosisResectionSurveillance

Identifiers

PMID32052215
OpenAlexW3006558871

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.