Evidence map›Paper›PMID 42088223›Full record

ArticleFrontiers in oncology2026

Signet-ring cell carcinoma of the appendix presenting as diffuse uterine involvement: a case report and literature review.

Kaige Pei, Junhan Liu, Chen Ling

Abstract readCase Reports
In one paragraph

Article in Frontiers in oncology, 2026. 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

3 authors.

Kaige PeiDepartment of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.
Junhan LiuDepartment of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.
Chen LingDepartment of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Appendiceal signet-ring cell carcinoma (SRCC) is rarely encountered, and presentation with diffuse uterine involvement as the initial manifestation has not been systematically reported, posing significant risk of misdiagnosis as primary uterine malignancy. Case presentation: A 45-year-old woman presented with vaginal bleeding for 4 months. Preoperative CT demonstrated diffuse uterine myometrial thickening and appendiceal wall thickening. Curettage pathology revealed signet-ring cells with immunohistochemistry CK20+++/SATB-2+++/CK7-/PAX-8-, favoring gastrointestinal origin. Intraoperatively, the uterus was 16-week size with a firm, enlarged appendix and right ovarian involvement. Cytoreductive surgery (CRS) confirmed appendiceal SRCC with uterine and mesenteric metastases. Eight cycles of adjuvant 5-FU plus cisplatin were administered. First recurrence occurred at 32 months, treated with six cycles of 5-FU, carboplatin, and bevacizumab. At last follow-up (January 2026), overall survival exceeded 52 months with normalized tumor markers. Conclusions: For patients with "uterine enlargement and ascites," appendiceal SRCC should be suspected. The enteric immunophenotype and right-sided ovarian dissemination pattern are diagnostic keys. Thorough surgery combined with chemotherapy can achieve long-term survival.

Indexed as

appendiceal neoplasmscytoreductive surgerypseudomyxoma peritoneisignet-ring cell carcinomauterine metastasis

Identifiers

PMID42088223
PMCPMC13136112

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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.