Evidence map›Paper›PMID 40475285›Full record

ArticleACG case reports journal2025

Tumoral Melanosis of the Colon: A Rare Manifestation of Regressed Melanoma.

Anoushka Dua, Tara Narasimhalu, Sepehr Hamidi, Rohit Dewan, Benjamin Nulsen

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

Article in ACG case reports journal, 2025. 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

5 authors.

Anoushka DuaDepartment of Medicine, University of California Irvine, Orange, CA.ORCID https://orcid.org/0000-0002-0372-5002
Tara NarasimhaluDepartment of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA.
Sepehr HamidiDepartment of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA.
Rohit DewanDepartment of Radiology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA.
Benjamin NulsenVatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tumoral melanosis (TM) is a rare manifestation of a benign, completely regressed malignant melanoma and mimics malignant melanoma. These lesions are often found in patients with a history of known or undiscovered metastatic melanoma at or around areas of prior malignancy, commonly on the skin. We describe a rare case of TM discovered in the colon on routine screening colonoscopy in a patient with a history of metastatic melanoma who was responding well to systemic immunotherapy. The pigmented lesion, although endoscopically malignant-appearing, was found on histopathology to be a benign accumulation of melanin-laden macrophages, consistent with TM.

Indexed as

colonoscopyimmunotherapymelanomamelanosisoncologypathologypigmentation

Identifiers

PMID40475285
PMCPMC12140676

What OpenQuestion holds

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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.