Evidence map›Paper›PMID 42671147›Full record

ArticleAnatomia, histologia, embryologia2026

Segmental Aplasia and Right Azygos Continuation of the Caudal Vena Cava in a Cat (Felis catus).

Kazuya Kushida, Daiki Hirao, Miori Kishimoto, Ryuji Fukushima-Yamaguchi, Tetsuhito Kigata

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

Article in Anatomia, histologia, embryologia, 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

5 authors.

Kazuya KushidaKoganei Animal Medical Emergency Center, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan.ORCID https://orcid.org/0009-0000-7100-0794
Daiki HiraoKoganei Animal Medical Emergency Center, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan.
Miori KishimotoCooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.ORCID https://orcid.org/0000-0002-4318-6402
Ryuji Fukushima-YamaguchiKoganei Animal Medical Emergency Center, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan.
Tetsuhito KigataCooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.ORCID https://orcid.org/0000-0002-2219-9634

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Segmental aplasia of the caudal vena cava is a rare variant, primarily reported in dogs. We describe herein a cat with this anomaly. The caudal vena cava was formed by confluence of the right and left common iliac veins and a common trunk of the right and left renal veins. The caudal vena cava continued to the right azygos vein and joined into the cranial vena cava. A confluence of hepatic veins drained into the right atrium as in the normal caudal vena cava. Detailed reports of venous variations are important for providing appropriate veterinary care.

Indexed as

Azygos VeinVena Cava, InferiorAnimalsCatsFemaleIliac VeinRenal Veinsanatomical variationangiographyazygos veincaudal vena cava

Identifiers

PMID42671147
PMCPMC13528272

What OpenQuestion holds

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Registered trials

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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.