Evidence map›Paper›PMID 32314429›Full record

ArticleInternational journal of urology : official journal of the Japanese Urological Association2020

Zoning inside the renal fascia: The anatomical relationship between the urinary system and perirenal fat.

Atsuhiko Ochi, Satoru Muro, Takuya Adachi, Keiichi Akita

Open access · hybridAbstract read
In one paragraph

Article in International journal of urology : official journal of the Japanese Urological Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

16 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Thin-Adipose Compartment at the Colonic Mesentery-Perirenal Fat Interface: Histological and Three-Dimensional Morphological Studies.International journal of urology : official journal of the Japanese Urological Association · 2026
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  11. What is the identity of Gerota fascia? Histological study with cadavers.International journal of urology : official journal of the Japanese Urological Association · 2025
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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

4 authors at 2 institutions in 1 country.

Atsuhiko OchiDepartment of Clinical Anatomy, Tokyo Medical and Dental University, Tokyo, Japan.
Satoru MuroDepartment of Clinical Anatomy, Tokyo Medical and Dental University, Tokyo, Japan.
Takuya AdachiDepartment of Radiology, Kameda Medical Center, Chiba, Japan.
Keiichi AkitaDepartment of Clinical Anatomy, Tokyo Medical and Dental University, Tokyo, Japan.
Kameda Medical Center · JPTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo examine the anatomical relationship between the urinary system and perirenal fat, and to clarify the zoning inside the renal fascia.

methodsUsing computed tomography images from 50 men, we examined perinephric veins to reveal vessel communication in perirenal fat. Nine cadavers were dissected to investigate connective tissue continuity and vessel communication inside the renal fascia. Eight retroperitoneal specimens were macroscopically observed: four from the anterior and four from the posterior aspects. One specimen was used to obtain retroperitoneal transverse sections to study macroscopic anatomy and histology.

resultsPerinephric veins were classified into four types (superior, middle, inferior and lateral) using computed tomography. Most of the inferior perinephric veins were connected to the ipsilateral gonadal vein. In the cadaveric study, the superior and middle perinephric veins communicated with veins deriving from the ipsilateral adrenal gland. A fibrous connective tissue gap between perirenal fat and renal hilar fat was observed in posterior aspect dissection. From the gap, we could dissect the urinary system from perirenal fat en bloc along with a thin fibrous connective tissue layer. Communicating vessels between perirenal fat and the urinary system were rare.

conclusionsOur results suggest that perirenal fat belongs to the connective tissue of the gonad and the adrenal gland. The urinary system is separate from perirenal fat, and is located on the dorsal side inside the renal fascia. This concept of zoning inside the renal fascia is valuable particularly in retroperitoneoscopic donor nephrectomy.

Indexed as

KidneyKidney NeoplasmsFasciaHumansMaleNephrectomyRetroperitoneal Spaceperinephric veinperirenal fatrenal fasciaretroperitoneal anatomyretroperitoneoscopy

Identifiers

PMID32314429
PMCPMC7384158
OpenAlexW3016836951

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.